Presentation 2014-01-23
Wide operating wavelength range of 30nm with 25.8-Gb/s push-pull-driven InGaAlAs DMLs on semi-insulating InP substrate
Wataru KOBAYASHI, Takeshi FUJISAWA, Ken TSUZUKI, Yoshitaka OHISO, Shigeru KANAZAWA, Takahiko SHINDO, Takayuki YAMANAKA, Hiroaki SANJOH,
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Abstract(in English) We design and fabricate directly modulated lasers (DMLs) with a wide wavelength range on one InP wafer to realize a large-capacity monolithically integrated light source array at a data rate of over 100Gb/s. To realize push-pull operation, the DMLs are fabricated on a semi-insulating (SI) InP substrate. We also employ InGaAlAs to form a multiple quantum well (MQW) structure and set the cavity length at 200μm to increase the differential gain and frequency of the relaxation oscillations. To extend the operating wavelength range, we focus the wavelength detuning (Δλ) and design it to be 5nm under operating conditions. We achieve a 3-dB-down frequency bandwidth of over 20GHz and obtain clear eye openings at 25.8-Gb/s and error free operation with a push-pull driving configuration for a 30-nm operating wavelength range.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Directly modulated laser / InGaAlAs / push-pull driving / 25.8Gb/s
Paper # PN2013-58,OPE2013-172,LQE2013-158,EST2013-107,MWP2013-78
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Committee EST
Conference Date 2014/1/16(1days)
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Registration To Electronic Simulation Technology (EST)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Wide operating wavelength range of 30nm with 25.8-Gb/s push-pull-driven InGaAlAs DMLs on semi-insulating InP substrate
Sub Title (in English)
Keyword(1) Directly modulated laser
Keyword(2) InGaAlAs
Keyword(3) push-pull driving
Keyword(4) 25.8Gb/s
1st Author's Name Wataru KOBAYASHI
1st Author's Affiliation NTT Photonics Laboratories, NTT Corporation()
2nd Author's Name Takeshi FUJISAWA
2nd Author's Affiliation NTT Photonics Laboratories, NTT Corporation
3rd Author's Name Ken TSUZUKI
3rd Author's Affiliation NTT Photonics Laboratories, NTT Corporation
4th Author's Name Yoshitaka OHISO
4th Author's Affiliation NTT Photonics Laboratories, NTT Corporation
5th Author's Name Shigeru KANAZAWA
5th Author's Affiliation NTT Photonics Laboratories, NTT Corporation
6th Author's Name Takahiko SHINDO
6th Author's Affiliation NTT Photonics Laboratories, NTT Corporation
7th Author's Name Takayuki YAMANAKA
7th Author's Affiliation NTT Photonics Laboratories, NTT Corporation
8th Author's Name Hiroaki SANJOH
8th Author's Affiliation NTT Photonics Laboratories, NTT Corporation
Date 2014-01-23
Paper # PN2013-58,OPE2013-172,LQE2013-158,EST2013-107,MWP2013-78
Volume (vol) vol.113
Number (no) 396
Page pp.pp.-
#Pages 6
Date of Issue