Chin. J. Semicond. > 2005, Volume 26 > Issue 12 > 2455-2459

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A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters

Li Wenyuan and Wang Zhigong

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Abstract: An integrated laser and optical modulator driver for ultra-high speed optic-fiber communication systems is designed and fabricated in a 0.2μm gate length AlGaAs/InGaAs/GaAs pseudomorphic high electron mobility transistor (PHEMT) process.The circuit consists of two stages of differential amplifiers with source follower pairs,a capacitive coupled current amplifier,and an output circuit.The driver IC occupies a die area of 1.0mm×0.9mm.Under a single supply of +5V,the power consumption is about 1.5W.Open eye diagrams are measured at a bit rate of up to 24Gb/s with a 2.4Vp-p voltage swing.It can be used in synchronous digital hierarchy transmission systems of optic-fiber communication.

Key words: PHEMTlaser/modulator driveramplifieroptic-fiber communication

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    Received: 19 August 2015 Revised: Online: Published: 01 December 2005

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      Li Wenyuan, Wang Zhigong. A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters[J]. Journal of Semiconductors, 2005, 26(12): 2455-2459. ****Li W Y, Wang Z G. A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters[J]. Chin. J. Semicond., 2005, 26(12): 2455.
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      Li Wenyuan, Wang Zhigong. A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters[J]. Journal of Semiconductors, 2005, 26(12): 2455-2459. ****
      Li W Y, Wang Z G. A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters[J]. Chin. J. Semicond., 2005, 26(12): 2455.

      A GaAs PHEMT Laser/Modulator Driver for 24 Gb/s Optical Transmitters

      • Received Date: 2015-08-19

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