Misalignment-tolerant, grating-tuned external-cavity laser with

Details Misalignment-tolerant, grating-tuned external-cavity laser with Misalignment-tolerant, grating-tuned external-cavity laser with

1991-07-30

1993-01-05

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Tuning

372102, 372107, 372101, H01S 310

Patent

active

051777509

ABSTRACT:
A grating tuned external cavity laser having improved mode selectivity and stability. A cylindrical lens is positioned between a laser amplifier and a prism pair beam expander to focus the laser beam to form a linear spot on a grating. The location of the cylindrical lens between the laser amplifier and the prism pair minimizes the optical length of the laser cavity. In this way, the wavelength separation between optical resonance modes is increased, and the mode selectivity and stability of the system is enhanced.

REFERENCES:
patent: 4410237 (1983-10-01), Veldkamp
patent: 4942583 (1990-07-01), Nazarathy et al.

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