Sampled grating DBR laser arrays with adjustable 0.8/1.6 nm wavelength spacing

Author

Lee, San-Liang ; Jang, Ing-Fa ; Pien, Ching-Tang ; Wang, Chi-Yu ; Shih, Tien-Tsorng

Author_Institution

Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

Volume

11

Issue

8

fYear

1999

Firstpage

955

Lastpage

957

Abstract

The difficulty in fabricating multiwavelength laser arrays with uniform wavelength spacing is overcome by using sampled grating distributed Bragg reflector (DBR) lasers as the constituent of a laser array. The sampling periods of the DBR mirrors are varied from laser to laser to provide reflection combs with different spacings in wavelength. Arrays of twelve lasers have been successfully fabricated with a single holographic exposure step. The wavelength spacing among the lasers can be adjusted to be around 0.8 or 1.6 nm with a simple tuning mechanism.

Keywords

diffraction gratings; distributed Bragg reflector lasers; holography; laser tuning; optical fabrication; optical transmitters; quantum well lasers; semiconductor laser arrays; MQW lasers; adjustable wavelength spacing; laser tuning; multiwavelength laser arrays; reflection combs; sampled grating DBR laser arrays; sampled grating distributed Bragg reflector lasers; sampling periods; simple tuning mechanism; single holographic exposure step; uniform wavelength spacing; wavelength spacing; Bragg gratings; Distributed Bragg reflectors; Laser theory; Laser tuning; Mirrors; Optical arrays; Optical reflection; Phased arrays; Sampling methods; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.775311

Filename

775311