External feedback sensitivity of 1.55-um gain-coupled multiquantum well DFB lasers

Guo Ping Li; Toshi Makino; Hanh Lu; Jin Hong; Wei-Ping Huang

doi:10.1117/12.176620

1 June 1994 External feedback sensitivity of 1.55-um gain-coupled multiquantum well DFB lasers

Guo Ping Li, Toshi Makino, Hanh Lu, Jin Hong, Wei-Ping Huang

Proceedings Volume 2148, Laser Diode Technology and Applications VI; (1994) https://doi.org/10.1117/12.176620
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

We present experimental results showing a reduction of relative intensity noise (RIN) in partly gain-coupled InGaAsP/InP multiquantum-well DFB lasers. By comparing with conventional index-coupled lasers, it is found that even a small gain-coupling improves significantly the feedback insensitivity of DFB lasers. The mechanism of the RIN reduction and the less feedback sensitivity are believed to be a combined effect of the high relaxation frequency and heavy damping rate, the stronger internal mode discrimination, the facet reflectivity immunity, and the flatter carrier distribution in the gain-coupling structure.

Citation Download Citation

Guo Ping Li, Toshi Makino, Hanh Lu, Jin Hong, and Wei-Ping Huang "External feedback sensitivity of 1.55-um gain-coupled multiquantum well DFB lasers", Proc. SPIE 2148, Laser Diode Technology and Applications VI, (1 June 1994); https://doi.org/10.1117/12.176620

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available