Title :
8-wavelength DBR laser array fabricated with a single-step Bragg grating printing technique
Author :
Verdiell, J.M. ; Koch, T.L. ; Tennant, D.M. ; Feder, K. ; Gnall, R.P. ; Young, M.G. ; Miller, B.I. ; Koren, U. ; Newkirk, M.A. ; Tell, B.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
An 8-wavelength distributed Bragg reflector (DBR) array for narrow channel wavelength division multiplexing (WDM) has been fabricated with a new technique for printing first-order Bragg gratings using a phase mask and a conventional incoherent source. All the distributed gratings were printed in a single photolithographic step with a slightly modified mask aligner. The DBR´s excellent wavelength control for channels separated by as little as 0.8 nm is described. Many advanced photonic devices relying on gratings like quarter-wave shifted distributed feedback (DFB) lasers and wavelength division multiplexing (WDM) components can potentially be manufactured with this technique in a simple and cost-effective way.<>
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser accessories; optical workshop techniques; semiconductor laser arrays; DBR laser array; DFB laser; distributed Bragg reflector laser array; incoherent source; mask aligner; phase mask; photolithographic step; photonic devices; semiconductor lasers; single-step Bragg grating printing technique; wavelength control; wavelength division multiplexing; Bragg gratings; Distributed Bragg reflectors; Holography; Laser beams; Optical arrays; Optical device fabrication; Phased arrays; Printing; Wavelength division multiplexing; Writing;
Journal_Title :
Photonics Technology Letters, IEEE
