Accession Number : ADP008198

Title :   Broadly Tunable InGaAsP/InP Laser Based on a Vertical Coupler Filter with 57nm Tuning Range,

Corporate Author : AT AND T BELL LABS HOLMDEL NJ

Personal Author(s) : Alferness, R. C. ; Koren, U. ; Buhl, L. L. ; Miller, B. I. ; Young, M. G.

Report Date : APR 1992

Pagination or Media Count : 2

Abstract : Broadly tunable semiconductor lasers are important sources for a number of applications, especially wavelength division multiplexed networks and switching systems. Presently, the most developed monolithic tunable lasers, the distributed feedback (DFB) or distributed Bragg reflector (DBR), are limited to an approximately 10nm electrical tuning range. By integrating a grating-assisted vertical coupler as a tunable intracavity filter in a novel active/passive monolithic laser, we have achieved a measured tuning range of 57nm.

Descriptors :   *SEMICONDUCTOR LASERS, *TUNABLE LASERS, COUPLERS, FEEDBACK, FILTERS, NETWORKS, REFLECTORS, TUNING, MULTIPLEXING, MONOLITHIC STRUCTURES(ELECTRONICS), OPTICAL SWITCHING.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE