Simulation and grating design of DFB-LDs for metropolitan area and access networks and their characteristics

Tetsuro Okuda; Yidong Huang; Kenji Sato; Yoshiharu Muroya

doi:10.1117/12.422162

18 December 2000 Simulation and grating design of DFB-LDs for metropolitan area and access networks and their characteristics

Tetsuro Okuda, Yidong Huang, Kenji Sato, Yoshiharu Muroya

Author Affiliations +

Proceedings Volume 4111, Terahertz and Gigahertz Electronics and Photonics II; (2000) https://doi.org/10.1117/12.422162
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

This paper describes grating design of distributed feedback laser diodes (DFB-LDs) for use in metropolitan area and access networks and demonstrates improved performance of DFB-LDs with new gratin structures. Dynamic behaviors of DFB-LDs under the external optical feedback were analyzed for conventional uniform grating DFB-LDs and partially corrugated waveguide laser diodes (PC-LDs). A high-resistant characteristic against external optical feedback was achieved by PC-LD with optimized grating structure. The increase of RIN was suppressed to as low as -126 dB/Hz with the external optical feedback of -20 dB. It was also found that feedback effect of mirror loss (FEML) plays an important role in external optical feedback resistance. Furthermore, negative FEML, which suppresses relaxation oscillation, reduces transient chirp under high-bit-rate modulation. FEML is successfully controlled by adjusting phase shift value in phase-shifted DFB-LDs, and very low power penalty transmission was demonstrated by (lambda) /8 phase-shifted DFB-LDs. After 100-km transmissions, a power penalty of less than 1 dB within a wide extinction ratio region form 8.5 to 14.5 dB was demonstrated with 2.5 Gb/s direct modulation. These DFB-LDs with new grating structure is promising for intermediate transmission applications.

Citation Download Citation

Tetsuro Okuda, Yidong Huang, Kenji Sato, and Yoshiharu Muroya "Simulation and grating design of DFB-LDs for metropolitan area and access networks and their characteristics", Proc. SPIE 4111, Terahertz and Gigahertz Electronics and Photonics II, (18 December 2000); https://doi.org/10.1117/12.422162

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