Single-longitudinal mode laser with orthogonal-polarization...

Details Single-longitudinal mode laser with orthogonal-polarization... Single-longitudinal mode laser with orthogonal-polarization...

2008-09-25

2010-06-22

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Mode discrimination

C372S106000

Reexamination Certificate

active

07742509

ABSTRACT:
A single longitudinal-mode laser includes a first mirror and a second mirror that define a laser cavity therein that does not include a linear polarizer. A birefringent gain medium can generate a lasing light at a lasing wavelength along a light propagation direction in response to a pump light at a pumping wavelength. The birefringent gain medium has an optical axis substantially perpendicular to the light propagation direction. A first wave plate positioned between the first mirror and the birefringent gain medium is a quarter wave plate at the lasing wavelength and a whole wave plate at the pumping wavelength. A second wave plate is positioned between the birefringent gain medium and the second mirror. The first wave plat and the second wave plate in part produce a single longitudinal mode in the lasing light.

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patent: 2002/0061037 (2002-05-01), Schmid et al.

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