Optical oscillator sweeper

Details Optical oscillator sweeper Optical oscillator sweeper

1990-08-01

1992-08-18

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Tuning

372 23, 372 29, 372102, H01S 310

Patent

active

051405997

ABSTRACT:
An external cavity laser is formed by feeding back light from a laser through two or more acoustooptic tuneable filters back to the laser. The Doppler shifts introduced by the filters do not entirely cancel. The net Doppler shift caused by the filters is continuously tuned to cause the bandpass of the filter to follow the shifting resonating frequency of the laser to prevent mode hopping.

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