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Proceedings Paper

1310-nm asymmetric single mode grating-outcoupled surface-emitting semiconductor laser with a broadband and a narrowband DBR reflector
Author(s): Taha Masood; Steve Patterson; Nuditha V. Amarasinghe; Scott McWilliams; Duy Phan; Darren Lee; Zuhair A. Hilali; Xiong Zhang; Gary A. Evans; Jerome Butler
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Paper Abstract

A 1310 nm single-frequency grating-outcoupled surface-emitting (GSE) semiconductor laser with output slope efficiency exceeding 0.05 mW/mA into a multimode fiber, threshold current below 20mA and > 30dB side-mode suppression ratio is reported. The GSE laser consists of a 500μm long active ridge that excites one end of a surface emitting second-order (outcoupler) grating with a broadband reflector terminating the laser cavity at the end of the outcoupler. At the opposite end of the outcoupler is a 200μm long first order distributed Bragg reflector (DBR). The emitting output aperture is approximately 10μm in length. Higher output power is possible for outcoupler lengths greater than 10 um. The GSE laser has an open eye pattern for a nonreturn-to-zero signal at 2.5 Gb/s into a single mode fiber. The far-field beam divergence measured at full-width half-maximum (FWHM) is 5 x 8 degrees.

Paper Details

Date Published: 8 December 2003
PDF: 10 pages
Proc. SPIE 5248, Semiconductor Optoelectronic Devices for Lightwave Communication, (8 December 2003); doi: 10.1117/12.511413
Show Author Affiliations
Taha Masood, Photodigm, Inc. (United States)
Steve Patterson, Photodigm, Inc. (United States)
Nuditha V. Amarasinghe, Photodigm, Inc. (United States)
Scott McWilliams, Photodigm, Inc. (United States)
Duy Phan, Photodigm, Inc. (United States)
Darren Lee, Photodigm, Inc. (United States)
Zuhair A. Hilali, Photodigm, Inc. (United States)
Xiong Zhang, Photodigm, Inc. (United States)
Gary A. Evans, Photodigm, Inc. (United States)
Southern Methodist Univ. (United States)
Jerome Butler, Southern Methodist Univ. (United States)

Published in SPIE Proceedings Vol. 5248:
Semiconductor Optoelectronic Devices for Lightwave Communication
Joachim Piprek, Editor(s)

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