Tunable transmitter with Mach-Zehnder modulator

Details Tunable transmitter with Mach-Zehnder modulator Tunable transmitter with Mach-Zehnder modulator

1998-01-30

2000-01-11

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Tuning

372 6, 372 92, 372 26, 372 64, 372 50, 372102, H01S 310

Patent

active

060143908

ABSTRACT:
An improved wavelength tunable transmitter comprises a waveguide grating router coupled to a truncated Mach-Zehnder interferometric modulator. Light from the second order Brillouin zones of a waveguide grating router having substantially the same phase are captured and coupled to first and second transmission paths comprising the truncated Mach-Zehnder interferometer, the transmission paths then being altered relative to each other and recombined to produce a modulated output signal. With this configuration, a compact tunable transmitter is provided exhibiting bandwidth and chirp control features comparable with those of a traditional Mach-Zehnder interferometer.

REFERENCES:
patent: 5002350 (1991-03-01), Dragone
patent: 5136671 (1992-08-01), Dragone
patent: 5155620 (1992-10-01), Gordon et al.
patent: 5339157 (1994-08-01), Glance et al.
patent: 5396507 (1995-03-01), Kaminow et al.
patent: 5412744 (1995-05-01), Dragone
patent: 5502781 (1996-03-01), Li et al.
patent: 5524014 (1996-06-01), Kaminow et al.
patent: 5623571 (1997-04-01), Chou et al.
patent: 5706375 (1998-01-01), Mihailov et al.
patent: 5881199 (1999-03-01), Li

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