Coherent light generators – Particular beam control device – Nonlinear device
Patent
1992-01-27
1993-12-28
Gonzalez, Frank
Coherent light generators
Particular beam control device
Nonlinear device
372 22, 359328, H01S 310
Patent
active
052746518
ABSTRACT:
An optical modulator which can perform optical modulation without using pulses having a high level peak power, include a medium having a nonlinear refractive index disposed interiorly of a laser resonator which includes an input mirror, an output mirror, a laser medium disposed between the input and output mirrors, and an excitation device for exciting the laser medium so that a laser pulse is oscillated by the laser medium. The optical modulator can operate in both the self phase modulation mode and the induced-phase modulation mode. To operate the optical modulator in the self phase modulation mode, the laser pulses passing through the medium are self phase modulated. To operate the optical modulator in the induced-phase modulation mode, a light emitting device is provided which emits a light to be modulated. The light is incident on the input mirror and passed through the medium so that the light is cross phase modulated by the laser serving as a pumping light.
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Gonzalez Frank
Hamamatsu Photonics K.K.
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