Coherent light generators – Particular beam control device – Mode locking
Patent
1992-09-24
1993-11-23
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Mode locking
372 94, 372108, 372 97, H01S 3098
Patent
active
052651088
ABSTRACT:
A coupled multiple output ring laser system having a plurality of ring lasers 100,200 that are coupled together, each ring laser having separate output beams 159,280 and separate suppressor mirrors 228,282, is provided with two optical trombones 250,252 mounted on a common phase shifter 268, which changes the optical path length to the suppressor mirror 228 in the laser 100 and changes the optical path length of the mutual coupling path between the laser 100 and the laser 200 in an equal and opposite direction, thereby changing the phase of the output beam 159 of the laser 100 with respect to the output beam of the laser 200, without changing the phase of the output beam 280 from the laser 200. The invention works for any number of lasers and works equally well with reverse-to-forward coupling or forward-to-reverse coupling schemes.
REFERENCES:
patent: 3628182 (1971-12-01), Rumson et al.
patent: 3697181 (1972-10-01), Macek et al.
patent: 4393503 (1983-07-01), Angelbeck et al.
patent: 4485473 (1984-11-01), Tang et al.
patent: 4682339 (1987-07-01), Sziklas et al.
patent: 4841541 (1989-06-01), Sziklas et al.
DePardo Gerald L.
Jr. Leon Scott
United Technologies Corporation
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