Optical transmitter having pre-modulation amplification

Details Optical transmitter having pre-modulation amplification Optical transmitter having pre-modulation amplification

1997-05-08

2000-02-08

Mullen, Thomas

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359156, 359181, 372 26, H04B 1004

Patent

active

060233621

ABSTRACT:
In one embodiment, an optical transmitter, which has a modulator disposed between an pair of optical amplifiers, exhibits reduced carrier-to-noise ratio and relatively high powers. In another embodiment, an optical amplifier is disposed between the laser carrier source and the modulator, but the post-modulator amplifier is omitted. Application of the transmitters to analog systems (e.g., CATV) and digital systems is described.

REFERENCES:
patent: 4893923 (1990-01-01), Javan
patent: 5434876 (1995-07-01), Atkins et al.
patent: 5450427 (1995-09-01), Fermann et al.
patent: 5550667 (1996-08-01), Krimmel et al.
patent: 5710651 (1998-01-01), Logan
E.E. Harstead et al., Application S.N. 08/798895, filed on Feb. 11, 1997, entitled Passive Optical Telecommunications Systems . . . , and assigned to the assignee hereof.

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