Injection laser modulator with external resonator

Coherent light generators – Particular beam control device – Modulation

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372 44, 372 50, 372 98, H01S 310, H01S 319

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044854749

ABSTRACT:
An injection laser is provided with a modulator which includes an external resonator cavity including a lithium niobate crystal and a spherical mirror closely coupled to the rear end of the laser with a source of bias voltage for selectively tuning the resonator for high frequency modulating the laser.

REFERENCES:
patent: 4101845 (1978-07-01), Russer
Nelson, "A Proposal for Internal Electrooptic Intensity and Frequency Modulation of Diode Lasers", IEEE JQE, Dec. 1967, pp. 667-674.
Edmonds et al., "Spectral Tuning and Mode Control in GaAs Injection Lasers", IBM TDB vol. 12, No. 11, Apr. 1970, p. 1857.
Nilsson et al., "Oscillation Frequency, Line Width Reduction and Frequency Modulation Characteristics for a Diode Laser with External Grating Feedback", Electronics Letters vol. 17, No. 17, Aug. 20, 1981, pp. 589-591.
Osterwalder, J. M. et al.; Frequency Modulation of GaAlAs Injection Lasers at Microwave Frequency Rates; Mar. 1980,
IEEE Journal Quantum Elect., vol. QE-16; pp. 250-252.
Osterwalder, J. M. et al.; GaAs MESFET Demodulates Gigabit Signal Rates for GaAlAs Injection Lasers, Proceedings of IEEE, vol. 67, No. 6, Jun. 1979, pp. 966-968.

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