Corrugation-pitch-modulated MQW-DFB laser with narrow spectral linewidth (170 kHz)

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/68.58038· OSTI ID:6542933

Okai, M; Tsuchiya, T; Uomi, K; Harada, T ^[1]

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1. Hitachi Ltd., Kokubunji, Tokyo (Japan). Central Research Lab.

A spectral linewidth of 170 kHz is achieved at a 1.5-{mu}m wavelength in a 1200-{mu}m long corrugation-pitch-modulated distributed feedback (DFB) laser having multiple quantum wells (MQW). This is the narrowest linewidth ever reported for InGaAsP DFB lasers. The linewidth-power product is 400 kHz {center dot} mW, and the extrapolated residual spectral linewidth is 150 kHz.

• OSTI ID: 6542933
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA) Vol. 2:8; ISSN IPTLE; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRAGG REFLECTION
EFFICIENCY
FREQUENCY MODULATION
LASERS
LINE WIDTHS
MODULATION
OPTICAL PUMPING
PUMPING
QUANTUM EFFICIENCY
REFLECTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS