J. Semicond. > 2017, Volume 38 > Issue 12 > 126001

SEMICONDUCTOR TECHNOLOGY

All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity

Lihong Zhang, Shuqian Sun, Ming Li and Ninghua Zhu

+ Author Affiliations

 Corresponding author: Ming Li, Email: ml@semi.ac.cn

DOI: 10.1088/1674-4926/38/12/126001

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Abstract: An all-optical temporal fractional order differentiator with ultrabroad bandwidth (~1.6 THz) and extremely simple fabrication is proposed and experimentally demonstrated based on an in-fiber ellipsoidal air-microcavity. The ellipsoidal air-microcavity is fabricated by splicing a single mode fiber (SMF) and a photonic crystal fiber (PCF) together using a simple arc-discharging technology. By changing the arc-discharging times, the propagation loss can be adjusted and then the differentiation order is tuned. A nearly Gaussian-like optical pulse with 3 dB bandwidth of 8 nm is launched into the differentiator and a 0.65 order differentiation of the input pulse is achieved with a processing error of 2.55%.

Key words: optical signal processing, optical differentiator, in-fiber ellipsoidal air-microcavity



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[16]
Wang T, Wang M. Fabry-Pérot fiber sensor for simultaneous measurement of refractive index and temperature based on an in-fiber ellipsoidal cavity. IEEE Photonics Technol Lett, 2012, 24(19): 1733 doi: 10.1109/LPT.2012.2212184
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Fig. 1.  (a) The schematic diagram and (b) the microscopic image of the in-fiber ellipsoidal air-microcavity.

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Fig. 2.  (Color online) (a) The simulated reflection magnitude and (b) the corresponding phase response of the in-fiber ellipsoidal air-microcavity with R = 3% and α = 0.1, 0.05, 0.03, 0.01.

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Fig. 3.  (Color online) Simulated differentiated pulses using the air-microcavity with R = 3%, α = 0.05 (a) and α = 0.01 (b) are shown in blue lines. The green lines show the ideal differentiations with the order of 0.4 (a) and 0.65 (b).

DownLoad: Full-Size Img PowerPoint
Fig. 4.  (Color online) (a) The magnitude and (b) phase response of an 9.4 μm air-microcavity at the central wavelength of 1567.5 nm. The red lines show the measured spectra and the blue lines show the ideal spectra.

DownLoad: Full-Size Img PowerPoint
Fig. 5.  (Color online) The experimental setup for time-domain characterization of the in-fiber ellipsoidal air-microcavity. OPO: optical parametric oscillator; OSA: optical spectrum analyzer; DSF: dispersion shifted fiber.

DownLoad: Full-Size Img PowerPoint
Fig. 6.  (Color online) The measured and ideal spectra of the (a) input and (b) output pulses.

DownLoad: Full-Size Img PowerPoint
Fig. 7.  (Color online) The temporal intensity and phase of the measured and simulated output pulses.

DownLoad: Full-Size Img PowerPoint
[1]
Caulfield H J, Dolev S. Why future supercomputing requires optics. Nat Photonics, 2010, 4(5): 261 doi: 10.1038/nphoton.2010.94
[2]
Tucker R S. The role of optics in computing. Nat Photonics, 2010, 4(7): 405 doi: 10.1038/nphoton.2010.162
[3]
Li F, Park Y, Azaña J. Complete temporal pulse characterization based on phase reconstruction using optical ultrafast differentiation. Opt Lett, 2007, 32(22): 3364 doi: 10.1364/OL.32.003364
[4]
Yao J, Zeng F, Wang Q. Photonic generation of ultrawideband signals. J Lightwave Technol, 2007, 25(11): 3219 doi: 10.1109/JLT.2007.906820
[5]
da Silva J A N, de Campos M L R. Spectrally efficient UWB pulse shaping with application in orthogonal PSM. IEEE Trans Commun, 2007, 55(2): 313 doi: 10.1109/TCOMM.2006.887493
[6]
Park Y, Kulishov M, Slavík R, et al. Picosecond and sub-picosecond flat-top pulse generation using uniform long-period fiber gratings. Opt Express, 2006, 14(26): 12670 doi: 10.1364/OE.14.012670
[7]
Park Y, Azaña J, Slavík R. Ultrafast all-optical first- and higher-order differentiators based on interferometers. Opt Lett, 2007, 32(6): 710 doi: 10.1364/OL.32.000710
[8]
Dong J, Zheng A, Gao D, et al. High-order photonic differentiator employing on-chip cascaded microring resonators. Opt Lett, 2013, 38(5): 628 doi: 10.1364/OL.38.000628
[9]
Rutkowska K A, Duchesne D, Strain M J, et al. Ultrafast all-optical temporal differentiators based on CMOS-compatible integrated-waveguide Bragg grating. Opt Express, 2011, 19(20): 19514 doi: 10.1364/OE.19.019514
[10]
Zhang W, Li W, Yao J. Optical differentiator based on an integrated sidewall phase-shifted Bragg grating. IEEE Photonics Technol Lett, 2014, 26(23): 2383 doi: 10.1109/LPT.2014.2357418
[11]
Li M, Jeong H S, Azaña J, et al. 25-terahertz-bandwidth all-optical temporal differentiator. Opt Eexpress, 2012, 20(27): 28273 doi: 10.1364/OE.20.028273
[12]
Cuadrado-Laborde C, Andrés M V. In-fiber all-optical fractional differentiator. Opt Lett, 2009, 34(6): 833 doi: 10.1364/OL.34.000833
[13]
Shahoei H, Xu D X, Schmid J H, et al. Photonic fractional-order differentiator using an SOI microring resonator with an MMI coupler. IEEE Photonics Technol Lett, 2013, 25(15): 1408 doi: 10.1109/LPT.2013.2266252
[14]
Shahoei H, Albert J, Yao J. Tunable fractional order temporal differentiator by optically pumping a tilted fiber Bragg grating. IEEE Photonics Technol Lett, 2012, 24(9): 730 doi: 10.1109/LPT.2012.2187331
[15]
Wang T, Wang M, Ni H. Micro-Fabry-Perot interferometer with high contrast based on an in-fiber ellipsoidal cavity. IEEE Photonics Technol. Lett, 2012, 24(11): 948 doi: 10.1109/LPT.2012.2185841
[16]
Wang T, Wang M. Fabry-Pérot fiber sensor for simultaneous measurement of refractive index and temperature based on an in-fiber ellipsoidal cavity. IEEE Photonics Technol Lett, 2012, 24(19): 1733 doi: 10.1109/LPT.2012.2212184
[17]
Lepetit L, Cheriaux G, Joffre M. Linear techniques of phase measurement by femtosecond spectral interferometry for applications in spectroscopy. JOSA B, 1995, 12(12): 2467 doi: 10.1364/JOSAB.12.002467
[18]
Dorrer C, Belabas N, Likforman J P, et al. Spectral resolution and sampling issues in Fourier-transform spectral interferometry. JOSA B, 2000, 17(10): 1795 doi: 10.1364/JOSAB.17.001795

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    Received: 03 May 2017 Revised: 24 May 2017 Online: Uncorrected proof: 11 November 2017Corrected proof: 15 November 2017Published: 01 December 2017

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      Article Navigation >  Journal of Semiconductors  > 2017  >  38(12): 126001
      Lihong Zhang, Shuqian Sun, Ming Li, Ninghua Zhu. All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity[J]. Journal of Semiconductors, 2017, 38(12): 126001. doi: 10.1088/1674-4926/38/12/126001 ****L H Zhang, S Q Sun, M Li, N H Zhu. All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity[J]. J. Semicond., 2017, 38(12): 126001. doi: 10.1088/1674-4926/38/12/126001.
      Citation:
      Lihong Zhang, Shuqian Sun, Ming Li, Ninghua Zhu. All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity[J]. Journal of Semiconductors, 2017, 38(12): 126001. doi: 10.1088/1674-4926/38/12/126001 ****
      L H Zhang, S Q Sun, M Li, N H Zhu. All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity[J]. J. Semicond., 2017, 38(12): 126001. doi: 10.1088/1674-4926/38/12/126001.
      shu

      All-optical temporal fractional order differentiator using an in-fiber ellipsoidal air-microcavity

      DOI: 10.1088/1674-4926/38/12/126001
      • 1.

        State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

      • 2.

        School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

      Funds:

      Project supported by the the National Natural Science Foundation of China (Nos. 61522509, 61377002, 61535012), the National High-Tech Research & Development Program of China (No. SS2015AA011002), and the Beijing Natural Science Foundation (No. 4152052). Ming Li was supported in part by the Thousand Young Talent Program.

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      • Corresponding author: Email: ml@semi.ac.cn
      • Received Date: 2017-05-03
      • Revised Date: 2017-05-24
      • Published Date: 2017-12-01

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