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Phase-locked InGaAsP laser array with diffraction coupling

✍ Scribed by Chen, T. R. ;Yu, K. L. ;Margalit, S. ;Yariv, A.

Publisher
Springer
Year
1984
Tongue
English
Weight
136 KB
Volume
41
Category
Article
ISSN
0003-6994

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✦ Synopsis

A phase-locked array of InGaAsP lasers has been fabricated for the first time. The array utilized diffraction coupling between 10 adjacent lasers to achieve phase locking. Threshold current as low as 200 mA is obtained for arrays with 250 Fm cavity length. Smooth single-lobe far field patterns with beam divergence as narrow as 3 o have been achieved.

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