Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 <i>μ</i>m

Fangyuan Meng; Hongyan Yu; Xuliang Zhou; Mengqi Wang; Yejin Zhang; Wenyu Yang; Jiaoqing Pan

doi:10.1088/1674-4926/43/6/062302

J. Semicond. > 2022, Volume 43 > Issue 6 > 062302

ARTICLES

Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm

Fangyuan Meng^{1, 2, 3}, Hongyan Yu^{1, 2, 3}, Xuliang Zhou^{1, 2, 3}, Mengqi Wang^{1, 2, 3}, Yejin Zhang², Wenyu Yang^{1, 2, 3} and Jiaoqing Pan^{1, 2, 3,}

+ Author Affiliations

Corresponding author: Jiaoqing Pan, jqpan@semi.ac.cn

DOI: 10.1088/1674-4926/43/6/062302

Abstract: A wide wavelength tuning range and single-mode hybrid cavity laser consists of a square Whispering-Gallery (WG) microcavity and a Fabry–Pérot (FP) was introduced and demonstrated. A wavelength tuning range over 12.5 nm from 1760.87 to 1773.39 nm which was single-mode emitting was obtained with the side-mode suppression ratio over 30 dB. The hybrid cavity laser does not need grating etching and special epitaxial structure, which reduces the fabrication difficulty and cost, and shows the potential for gas sensing with absorption lines in this range.

Key words: wavelength tunable, hybrid cavity laser, Whispering-Gallery microcavity, gas sensing

References

[1]	Bakhirkin Y A, Kosterev A A, Roller C, et al. Mid-infrared quantum cascade laser based off-axis integrated cavity output spectroscopy for biogenic nitric oxide detection. Appl Opt, 2004, 43, 2257 doi: 10.1364/AO.43.002257
[2]	Fobelets K, Panteli C, Sydoruk O, et al. Ammonia sensing using arrays of silicon nanowires and graphene. J Semicond, 2018, 39, 063001 doi: 10.1088/1674-4926/39/6/063001
[3]	Chen Z S, Chen Z, Song Z L, et al. Smart gas sensor arrays powered by artificial intelligence. J Semicond, 2019, 40, 111601 doi: 10.1088/1674-4926/40/11/111601
[4]	Zeller W, Naehle L, Fuchs P, et al. DFB lasers between 760 nm and 16 μm for sensing applications. Sens Basel Switz, 2010, 10, 2492 doi: 10.3390/s100402492
[5]	Yu H Y, Wang P F, Mi J P, et al. 1.8-μm DBR lasers with over 11-nm continous wavelength tuning range for multi-species gas detection. Asia Communications and Photonics Conference, 2017, 1
[6]	Tao L, Kai Z, Cuiluan W, et al. Fabrication of practical 1730 nm waveband laser diodes with buried heterojunction structures. Chin J Semicond, 2006, 27, 1467
[7]	Yu H Y, Pan J Q, Shao Y B, et al. 1.82-μm distributed feedback lasers with InGaAs/InGaAsP multiple-quantum wells for a H₂O sensing system. Chin Opt Lett, 2013, 11, 31404 doi: 10.3788/COL201311.031404
[8]	Guo X H, He A, Su Y K. Recent advances of heterogeneously integrated III–V laser on Si. J Semicond, 2019, 40, 101304 doi: 10.1088/1674-4926/40/10/101304
[9]	Liu Y, Sun Y, Kong D H, et al. Frequency and wavelength tunable optical microwave source based on a distributed Bragg reflector self-pulsation laser. J Semicond, 2010, 31, 064007 doi: 10.1088/1674-4926/31/6/064007
[10]	Niu B, Yu H Y, Yu L Q, et al. A 1.65 μm three-section distributed Bragg reflector (DBR) laser for CH₄ gas sensors. J Semicond, 2013, 34, 104004 doi: 10.1088/1674-4926/34/10/104004
[11]	Yu H Y, Pan J Q, Zhou X L, et al. A widely tunable three-section DBR lasers for multi-species gas detection. Appl Sci, 2021, 11, 2618 doi: 10.3390/app11062618
[12]	Yu H Y, Wang M Q, Zhou D B, et al. A 1.6-μm widely tunable distributed Bragg reflector laser diode based on InGaAs/InGaAsP quantum-wells material. Opt Commun, 2021, 497, 127201 doi: 10.1016/j.optcom.2021.127201
[13]	Luo H, Yang C G, Xie S W, et al. High order DBR GaSb based single longitude mode diode lasers at 2 μm wavelength. J Semicond, 2018, 39, 104007 doi: 10.1088/1674-4926/39/10/104007
[14]	Chang-Hasnain C J. Tunable VCSEL. IEEE J Sel Top Quantum Electron, 2000, 6, 978 doi: 10.1109/2944.902146
[15]	Potsaid B, Jayaraman V, Fujimoto J G, et al. MEMS tunable VCSEL light source for ultrahigh speed 60kHz – 1MHz axial scan rate and long range centimeter class OCT imaging. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 2012, 8213, 8213M
[16]	Schilt S, Zogal K, Kögel B, et al. Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications. Appl Phys B, 2010, 100, 321 doi: 10.1007/s00340-010-3898-9
[17]	Coldren L A, Miller B I, Iga K, et al. Monolithic two-section GaInAsP/InP active-optical-resonator devices formed by reactive ion etching. Appl Phys Lett, 1981, 38, 315 doi: 10.1063/1.92353
[18]	Liu B, Shakouri A, Bowers J E. Wide tunable double ring resonator coupled lasers. IEEE Photonics Technol Lett, 2002, 14, 600 doi: 10.1109/68.998697
[19]	Jin J L, Wang L, Yu T T, et al. Widely wavelength switchable V-coupled-cavity semiconductor laser with ~40 dB side-mode suppression ratio. Opt Lett, 2011, 36, 4230 doi: 10.1364/OL.36.004230
[20]	Chen Q A, Ma X, Sun W, et al. Demonstration of multi-channel interference widely tunable semiconductor laser. IEEE Photonics Technol Lett, 2016, 28, 2862 doi: 10.1109/LPT.2016.2624308
[21]	Ma X W, Huang Y Z, Yang Y D, et al. Mode and lasing characteristics for hybrid square-rectangular lasers. IEEE J Sel Top Quantum Electron, 2017, 23, 1 doi: 10.1109/JSTQE.2017.2652059
[22]	Ma X W, Huang Y Z, Yang Y D, et al. All-optical flip-flop based on hybrid square-rectangular bistable lasers. Opt Lett, 2017, 42, 2291 doi: 10.1364/OL.42.002291
[23]	Hao Y Z, Huang Y Z, Wang F L, et al. Widely tunable single-mode hybrid square/rhombus-rectangular lasers. 2018 Asia Communications and Photonics Conference, 2018, 1
[24]	Huang Y Z, Ma X W, Yang Y D, et al. Hybrid-cavity semiconductor lasers with a whispering-gallery cavity for controlling Q factor. Sci China Inf Sci, 2018, 61, 1 doi: 10.1007/s11432-017-9361-3
[25]	Mi J P, Yu H Y, Yuan L J, et al. Distributed Bragg reflector laser (1.8 μm) with 10 nm wavelength tuning range. Chin Opt Lett, 2015, 13, 41401 doi: 10.3788/COL201513.041401
[26]	Bathe K J, Wilson E L. Numerical methods in finite element analysis. Prentice Hall, 1976
[27]	Meng F Y, Yu H Y, Zhou X L, et al. Quantum wells micro-ring resonator laser emitting at 1746 nm for gas sensing. Chin Opt Lett, 2021, 19, 041406 doi: 10.3788/COL202119.041406
[28]	Handbook of optics. New York: McGraw-Hill, 2001

Fig. 1. (Color online) The simulation parameters of the WG-FP hybrid cavity laser.

DownLoad: Full-Size Img PowerPoint

Fig. 2. (Color online) The mode Q factor variation with different mode wavelength when (a) Im(n_WG) = Im(n_FP) = 0. (b) Im(n_WG) decreases from 0.00003 to –0.00003 while Im(n_FP) = 0.

DownLoad: Full-Size Img PowerPoint

Fig. 3. The mode center wavelengths variation with the change of the real part of the square microcavity refractive index Δn_WG.

DownLoad: Full-Size Img PowerPoint

Fig. 4. (Color online) Fabrication process of the WG-FP hybrid cavity laser.

DownLoad: Full-Size Img PowerPoint

Fig. 5. (Color online) (a) Cross-sectional view SEM image after ICP etching. (b) The microscope image of the fabricated WG-FP hybrid cavity laser.

DownLoad: Full-Size Img PowerPoint

Fig. 6. (Color online) (a) Curves of light power variation with I_FP at the I_WG are 0, 2, 5, and 10 mA. (b) Lasing spectrum measured for the laser under I_FP = 80 mA, I_WG = 70 mA.

DownLoad: Full-Size Img PowerPoint

Fig. 7. (Color online) Lasing characteristics with the variations of I_FP and I_WG for the laser. Lasing spectra (a) variation with I_WG at I_FP = 80 mA, (b) variation with I_FP at I_WG = 35 mA. Dominant lasing mode wavelengths and corresponding SMSRs (c) variation with I_WG at I_FP = 80 mA, (d) variation with I_FP at I_WG = 35 mA, respectively.

DownLoad: Full-Size Img PowerPoint

Fig. 8. (Color online) Superimposed lasing spectra with a wavelength continuous tuning range of 12.52 nm by varying I_FP and I_WG simultaneously.

DownLoad: Full-Size Img PowerPoint

[1]	Bakhirkin Y A, Kosterev A A, Roller C, et al. Mid-infrared quantum cascade laser based off-axis integrated cavity output spectroscopy for biogenic nitric oxide detection. Appl Opt, 2004, 43, 2257 doi: 10.1364/AO.43.002257
[2]	Fobelets K, Panteli C, Sydoruk O, et al. Ammonia sensing using arrays of silicon nanowires and graphene. J Semicond, 2018, 39, 063001 doi: 10.1088/1674-4926/39/6/063001
[3]	Chen Z S, Chen Z, Song Z L, et al. Smart gas sensor arrays powered by artificial intelligence. J Semicond, 2019, 40, 111601 doi: 10.1088/1674-4926/40/11/111601
[4]	Zeller W, Naehle L, Fuchs P, et al. DFB lasers between 760 nm and 16 μm for sensing applications. Sens Basel Switz, 2010, 10, 2492 doi: 10.3390/s100402492
[5]	Yu H Y, Wang P F, Mi J P, et al. 1.8-μm DBR lasers with over 11-nm continous wavelength tuning range for multi-species gas detection. Asia Communications and Photonics Conference, 2017, 1
[6]	Tao L, Kai Z, Cuiluan W, et al. Fabrication of practical 1730 nm waveband laser diodes with buried heterojunction structures. Chin J Semicond, 2006, 27, 1467
[7]	Yu H Y, Pan J Q, Shao Y B, et al. 1.82-μm distributed feedback lasers with InGaAs/InGaAsP multiple-quantum wells for a H₂O sensing system. Chin Opt Lett, 2013, 11, 31404 doi: 10.3788/COL201311.031404
[8]	Guo X H, He A, Su Y K. Recent advances of heterogeneously integrated III–V laser on Si. J Semicond, 2019, 40, 101304 doi: 10.1088/1674-4926/40/10/101304
[9]	Liu Y, Sun Y, Kong D H, et al. Frequency and wavelength tunable optical microwave source based on a distributed Bragg reflector self-pulsation laser. J Semicond, 2010, 31, 064007 doi: 10.1088/1674-4926/31/6/064007
[10]	Niu B, Yu H Y, Yu L Q, et al. A 1.65 μm three-section distributed Bragg reflector (DBR) laser for CH₄ gas sensors. J Semicond, 2013, 34, 104004 doi: 10.1088/1674-4926/34/10/104004
[11]	Yu H Y, Pan J Q, Zhou X L, et al. A widely tunable three-section DBR lasers for multi-species gas detection. Appl Sci, 2021, 11, 2618 doi: 10.3390/app11062618
[12]	Yu H Y, Wang M Q, Zhou D B, et al. A 1.6-μm widely tunable distributed Bragg reflector laser diode based on InGaAs/InGaAsP quantum-wells material. Opt Commun, 2021, 497, 127201 doi: 10.1016/j.optcom.2021.127201
[13]	Luo H, Yang C G, Xie S W, et al. High order DBR GaSb based single longitude mode diode lasers at 2 μm wavelength. J Semicond, 2018, 39, 104007 doi: 10.1088/1674-4926/39/10/104007
[14]	Chang-Hasnain C J. Tunable VCSEL. IEEE J Sel Top Quantum Electron, 2000, 6, 978 doi: 10.1109/2944.902146
[15]	Potsaid B, Jayaraman V, Fujimoto J G, et al. MEMS tunable VCSEL light source for ultrahigh speed 60kHz – 1MHz axial scan rate and long range centimeter class OCT imaging. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 2012, 8213, 8213M
[16]	Schilt S, Zogal K, Kögel B, et al. Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications. Appl Phys B, 2010, 100, 321 doi: 10.1007/s00340-010-3898-9
[17]	Coldren L A, Miller B I, Iga K, et al. Monolithic two-section GaInAsP/InP active-optical-resonator devices formed by reactive ion etching. Appl Phys Lett, 1981, 38, 315 doi: 10.1063/1.92353
[18]	Liu B, Shakouri A, Bowers J E. Wide tunable double ring resonator coupled lasers. IEEE Photonics Technol Lett, 2002, 14, 600 doi: 10.1109/68.998697
[19]	Jin J L, Wang L, Yu T T, et al. Widely wavelength switchable V-coupled-cavity semiconductor laser with ~40 dB side-mode suppression ratio. Opt Lett, 2011, 36, 4230 doi: 10.1364/OL.36.004230
[20]	Chen Q A, Ma X, Sun W, et al. Demonstration of multi-channel interference widely tunable semiconductor laser. IEEE Photonics Technol Lett, 2016, 28, 2862 doi: 10.1109/LPT.2016.2624308
[21]	Ma X W, Huang Y Z, Yang Y D, et al. Mode and lasing characteristics for hybrid square-rectangular lasers. IEEE J Sel Top Quantum Electron, 2017, 23, 1 doi: 10.1109/JSTQE.2017.2652059
[22]	Ma X W, Huang Y Z, Yang Y D, et al. All-optical flip-flop based on hybrid square-rectangular bistable lasers. Opt Lett, 2017, 42, 2291 doi: 10.1364/OL.42.002291
[23]	Hao Y Z, Huang Y Z, Wang F L, et al. Widely tunable single-mode hybrid square/rhombus-rectangular lasers. 2018 Asia Communications and Photonics Conference, 2018, 1
[24]	Huang Y Z, Ma X W, Yang Y D, et al. Hybrid-cavity semiconductor lasers with a whispering-gallery cavity for controlling Q factor. Sci China Inf Sci, 2018, 61, 1 doi: 10.1007/s11432-017-9361-3
[25]	Mi J P, Yu H Y, Yuan L J, et al. Distributed Bragg reflector laser (1.8 μm) with 10 nm wavelength tuning range. Chin Opt Lett, 2015, 13, 41401 doi: 10.3788/COL201513.041401
[26]	Bathe K J, Wilson E L. Numerical methods in finite element analysis. Prentice Hall, 1976
[27]	Meng F Y, Yu H Y, Zhou X L, et al. Quantum wells micro-ring resonator laser emitting at 1746 nm for gas sensing. Chin Opt Lett, 2021, 19, 041406 doi: 10.3788/COL202119.041406
[28]	Handbook of optics. New York: McGraw-Hill, 2001

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Received: 06 September 2021 Revised: 14 February 2022 Online: Accepted Manuscript: 30 March 2022Uncorrected proof: 07 April 2022Published: 06 June 2022

Article Navigation > Journal of Semiconductors > 2022 > 43(6): 062302

Fangyuan Meng, Hongyan Yu, Xuliang Zhou, Mengqi Wang, Yejin Zhang, Wenyu Yang, Jiaoqing Pan. Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm[J]. Journal of Semiconductors, 2022, 43(6): 062302. doi: 10.1088/1674-4926/43/6/062302 ****F Y Meng, H Y Yu, X L Zhou, M Q Wang, Y J Zhang, W Y Yang, J Q Pan. Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm[J]. J. Semicond, 2022, 43(6): 062302. doi: 10.1088/1674-4926/43/6/062302

Citation:

F Y Meng, H Y Yu, X L Zhou, M Q Wang, Y J Zhang, W Y Yang, J Q Pan. Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm[J]. J. Semicond, 2022, 43(6): 062302. doi: 10.1088/1674-4926/43/6/062302

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Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm

DOI: 10.1088/1674-4926/43/6/062302

Fangyuan Meng^{1, 2, 3},
Hongyan Yu^{1, 2, 3},
Xuliang Zhou^{1, 2, 3},
Mengqi Wang^{1, 2, 3},
Yejin Zhang²,
Wenyu Yang^{1, 2, 3},
Jiaoqing Pan^{1, 2, 3,}

1.
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3.
Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China

More Information

Fangyuan Meng：got her BS from Shandong University in 2016. Now she is a PhD student at the Institute of Semiconductors, Chinese Academy of Science under the supervision of Prof. Jiaoqing Pan. Her research focuses on semiconductor lasers based on III–V materials
Jiaoqing Pan：got his PhD from Shandong University in 2003. Then he joined Wei Wang Group at the Institute of Semiconductors, Chinese Academy of Science, as a postdoc. Now he is a professor at the Institute of Semiconductors, Chinese Academy of Science. His research fields and directions include the silicon-based monolithic integrated lidar, silicon-based nano-laser, silicon-based hybrid integrated laser, TDLAS sensing system, and InP-based monolithic integrated photonic chips
Corresponding author: jqpan@semi.ac.cn
Received Date: 2021-09-06
Revised Date: 2022-02-14

Available Online: 2022-03-30

Abstract

Abstract

A wide wavelength tuning range and single-mode hybrid cavity laser consists of a square Whispering-Gallery (WG) microcavity and a Fabry–Pérot (FP) was introduced and demonstrated. A wavelength tuning range over 12.5 nm from 1760.87 to 1773.39 nm which was single-mode emitting was obtained with the side-mode suppression ratio over 30 dB. The hybrid cavity laser does not need grating etching and special epitaxial structure, which reduces the fabrication difficulty and cost, and shows the potential for gas sensing with absorption lines in this range.
- wavelength tunable,
- hybrid cavity laser,
- Whispering-Gallery microcavity,
- gas sensing

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References(28)

References

[1]	Bakhirkin Y A, Kosterev A A, Roller C, et al. Mid-infrared quantum cascade laser based off-axis integrated cavity output spectroscopy for biogenic nitric oxide detection. Appl Opt, 2004, 43, 2257 doi: 10.1364/AO.43.002257
[2]	Fobelets K, Panteli C, Sydoruk O, et al. Ammonia sensing using arrays of silicon nanowires and graphene. J Semicond, 2018, 39, 063001 doi: 10.1088/1674-4926/39/6/063001
[3]	Chen Z S, Chen Z, Song Z L, et al. Smart gas sensor arrays powered by artificial intelligence. J Semicond, 2019, 40, 111601 doi: 10.1088/1674-4926/40/11/111601
[4]	Zeller W, Naehle L, Fuchs P, et al. DFB lasers between 760 nm and 16 μm for sensing applications. Sens Basel Switz, 2010, 10, 2492 doi: 10.3390/s100402492
[5]	Yu H Y, Wang P F, Mi J P, et al. 1.8-μm DBR lasers with over 11-nm continous wavelength tuning range for multi-species gas detection. Asia Communications and Photonics Conference, 2017, 1
[6]	Tao L, Kai Z, Cuiluan W, et al. Fabrication of practical 1730 nm waveband laser diodes with buried heterojunction structures. Chin J Semicond, 2006, 27, 1467
[7]	Yu H Y, Pan J Q, Shao Y B, et al. 1.82-μm distributed feedback lasers with InGaAs/InGaAsP multiple-quantum wells for a H₂O sensing system. Chin Opt Lett, 2013, 11, 31404 doi: 10.3788/COL201311.031404
[8]	Guo X H, He A, Su Y K. Recent advances of heterogeneously integrated III–V laser on Si. J Semicond, 2019, 40, 101304 doi: 10.1088/1674-4926/40/10/101304
[9]	Liu Y, Sun Y, Kong D H, et al. Frequency and wavelength tunable optical microwave source based on a distributed Bragg reflector self-pulsation laser. J Semicond, 2010, 31, 064007 doi: 10.1088/1674-4926/31/6/064007
[10]	Niu B, Yu H Y, Yu L Q, et al. A 1.65 μm three-section distributed Bragg reflector (DBR) laser for CH₄ gas sensors. J Semicond, 2013, 34, 104004 doi: 10.1088/1674-4926/34/10/104004
[11]	Yu H Y, Pan J Q, Zhou X L, et al. A widely tunable three-section DBR lasers for multi-species gas detection. Appl Sci, 2021, 11, 2618 doi: 10.3390/app11062618
[12]	Yu H Y, Wang M Q, Zhou D B, et al. A 1.6-μm widely tunable distributed Bragg reflector laser diode based on InGaAs/InGaAsP quantum-wells material. Opt Commun, 2021, 497, 127201 doi: 10.1016/j.optcom.2021.127201
[13]	Luo H, Yang C G, Xie S W, et al. High order DBR GaSb based single longitude mode diode lasers at 2 μm wavelength. J Semicond, 2018, 39, 104007 doi: 10.1088/1674-4926/39/10/104007
[14]	Chang-Hasnain C J. Tunable VCSEL. IEEE J Sel Top Quantum Electron, 2000, 6, 978 doi: 10.1109/2944.902146
[15]	Potsaid B, Jayaraman V, Fujimoto J G, et al. MEMS tunable VCSEL light source for ultrahigh speed 60kHz – 1MHz axial scan rate and long range centimeter class OCT imaging. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 2012, 8213, 8213M
[16]	Schilt S, Zogal K, Kögel B, et al. Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications. Appl Phys B, 2010, 100, 321 doi: 10.1007/s00340-010-3898-9
[17]	Coldren L A, Miller B I, Iga K, et al. Monolithic two-section GaInAsP/InP active-optical-resonator devices formed by reactive ion etching. Appl Phys Lett, 1981, 38, 315 doi: 10.1063/1.92353
[18]	Liu B, Shakouri A, Bowers J E. Wide tunable double ring resonator coupled lasers. IEEE Photonics Technol Lett, 2002, 14, 600 doi: 10.1109/68.998697
[19]	Jin J L, Wang L, Yu T T, et al. Widely wavelength switchable V-coupled-cavity semiconductor laser with ~40 dB side-mode suppression ratio. Opt Lett, 2011, 36, 4230 doi: 10.1364/OL.36.004230
[20]	Chen Q A, Ma X, Sun W, et al. Demonstration of multi-channel interference widely tunable semiconductor laser. IEEE Photonics Technol Lett, 2016, 28, 2862 doi: 10.1109/LPT.2016.2624308
[21]	Ma X W, Huang Y Z, Yang Y D, et al. Mode and lasing characteristics for hybrid square-rectangular lasers. IEEE J Sel Top Quantum Electron, 2017, 23, 1 doi: 10.1109/JSTQE.2017.2652059
[22]	Ma X W, Huang Y Z, Yang Y D, et al. All-optical flip-flop based on hybrid square-rectangular bistable lasers. Opt Lett, 2017, 42, 2291 doi: 10.1364/OL.42.002291
[23]	Hao Y Z, Huang Y Z, Wang F L, et al. Widely tunable single-mode hybrid square/rhombus-rectangular lasers. 2018 Asia Communications and Photonics Conference, 2018, 1
[24]	Huang Y Z, Ma X W, Yang Y D, et al. Hybrid-cavity semiconductor lasers with a whispering-gallery cavity for controlling Q factor. Sci China Inf Sci, 2018, 61, 1 doi: 10.1007/s11432-017-9361-3
[25]	Mi J P, Yu H Y, Yuan L J, et al. Distributed Bragg reflector laser (1.8 μm) with 10 nm wavelength tuning range. Chin Opt Lett, 2015, 13, 41401 doi: 10.3788/COL201513.041401
[26]	Bathe K J, Wilson E L. Numerical methods in finite element analysis. Prentice Hall, 1976
[27]	Meng F Y, Yu H Y, Zhou X L, et al. Quantum wells micro-ring resonator laser emitting at 1746 nm for gas sensing. Chin Opt Lett, 2021, 19, 041406 doi: 10.3788/COL202119.041406
[28]	Handbook of optics. New York: McGraw-Hill, 2001

Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm

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Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm

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Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm

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