8-wavelength DBR laser array fabricated with a single-step Bragggrating printing technique |
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| Authors: | Verdiell J-M Koch TL Tennant DM Feder K Gnall RP Young MG Miller BI Koren U Newkirk MA Tell B |
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| Affiliation: | AT&T Bell Lab., Holmdel, NJ; |
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| 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 |
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