74 nm wavelength tuning range of an InGaAsP/InP vertical grating assisted codirectional coupler laser with rear sampled grating reflector

Öberg, M.; Nilsson, S.; Streubel, K.; Wallin, J.; Backbom, L.; Klinga, T.

doi:10.1109/68.229789

Cited by 92 publications

(14 citation statements)

References 5 publications

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“…Several approaches have been proposed to overcome this limitation. In the grating coupler sampled reflector (GCSR) laser [4]- [6] a broadly tunable put poorly selective grating assisted codirectional coupler filter is combined with a periodically sampled Bragg grating, which exhibits a comb-shaped reflection spectrum [7]. Another method consists of using two periodically modulated Bragg reflectors, which have comb-shaped reflection spectra with slightly different peak spacing ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Control of widely tunable SSG-DBR lasers for dense wavelength division multiplexing

Sarlet

Morthier²,

Baets³

2000

J. Lightwave Technol.

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Abstract-This paper presents a general discussion on the control of widely tunable super structure grating distributed Bragg reflector (SSG-DBR) lasers. A feedback control scheme is presented that ensures frequency stability and accuracy (better than 0.5 GHz), as well as high side mode suppression ratio ( 35 dB). The active section voltage is monitored to maintain mode stability and a highly stable Fabry-Perot etalon is used as a reference to lock the laser frequency to a specific ITU channel. It is shown that stability can even be maintained when directly modulating the laser at 1.244 Gb/s. Furthermore, a characterization scheme is demonstrated that uses the voltage monitoring to generate a look-up table of operation points very efficiently and accurately. For all operation points, the frequency accuracy is better than 0 5 GHz and the side mode suppression ratio is above 35 dB.Index Terms-Distributed Bragg reflector (DBR) lasers, laser stability, laser tuning, semiconductor lasers, wavelength division multiplexing (WDM).

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Section: Introductionmentioning

confidence: 99%

Control of widely tunable SSG-DBR lasers for dense wavelength division multiplexing

Sarlet

Morthier²,

Baets³

2000

J. Lightwave Technol.

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“…Furthermore, the carrier effect due to carrier injections in semiconductor tunable filters causes large refractive index change, reducing of power consumption of the filter. Up to now, various tunable lasers monolithically integrated with a tunable filter have been developed [2]- [5].…”

Section: Introductionmentioning

confidence: 99%

Tunable Laser Integrated With Lateral-Grating-Assisted Lateral Codirectional Coupler Filter

Suzuki

Arimoto

Kitatani

et al. 2011

IEEE Photon. Technol. Lett.

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A tunable laser monolithically integrated with an optical waveguide tunable filter, named a "lateral-grating-assisted lateral codirectional coupler" (LGLC) filter, was fabricated and demonstrated. The LGLC filter has medium wavelength selectivity characteristics and operates over a 100-nm-wide wavelength range at 60-mA injection current. A tunable laser was also fabricated and its wavelength characteristic of sidemode suppression ration (SMSR) of over 35 dB at -band wavelength range was demonstrated.

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“…Within the TWC, the wavelengths of optical packets are changed on a packet-by-packet basis, thus the lasing wavelength of the tunable laser should be tuned within several nanoseconds. So far, several types of tunable lasers have been demonstrated, including the sampled-grating/super-structure-grating distributed-Braggreflector (SG/SSG DBR) lasers [11], [12], digital supermode (DS) DBR lasers [13], modulated grating Y-branch (MGY) lasers [14], and grating coupler with rear sampled grating reflector (GCSR) lasers [15]. These lasers have a common tuning mechanism based on the free-carrier plasma effect produced by current injection, which changes the refractive indices of the tuning sections.…”

Section: Copyright Cmentioning

confidence: 99%

Wavelength-Routed Switching for 25-Gbit/s Optical Packets Using a Compact Transmitter Integrating a Parallel-Ring-Resonator Tunable Laser and an InGaAlAs EAM

Segawa

Kobayashi

Nakahara

et al. 2014

IEICE Trans. Electron.

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SUMMARYWe describe wavelength-routed switching technology for 25-Gbit/s optical packets using a tunable transmitter that monolithically integrates a parallel-ring-resonator tunable laser and an InGaAlAs electroabsorption modulator (EAM). The transmitter provided accurate wavelength tunability with 100-GHz spacing and small output power variation. A 25-Gbit/s burst-mode optical-packet data was encoded onto the laser output by modulating the integrated EAM with a constant voltage swing of 2 V at 45 • C. Clear eye openings were observed at the output of the 100 GHz-spaced arrayed-waveguide grating with error-free operation being achieved for all packets. The tunable transmitter is very promising for realizing a high-speed, large-port-count and energy-efficient wavelengthrouting switch that enables the forwarding of 100-Gbit/s optical packets.

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74 nm wavelength tuning range of an InGaAsP/InP vertical grating assisted codirectional coupler laser with rear sampled grating reflector

Cited by 92 publications

References 5 publications

Control of widely tunable SSG-DBR lasers for dense wavelength division multiplexing

Control of widely tunable SSG-DBR lasers for dense wavelength division multiplexing

Tunable Laser Integrated With Lateral-Grating-Assisted Lateral Codirectional Coupler Filter

Wavelength-Routed Switching for 25-Gbit/s Optical Packets Using a Compact Transmitter Integrating a Parallel-Ring-Resonator Tunable Laser and an InGaAlAs EAM

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