Michael Richard Moothart

Address:

3031 Montego Pl, Plano, TX 75023

Phone:

9727697069

VIN:

5NPET46C67H191510

Make:

HYUNDAI

Model:

SONATA

Year:

2007

US Patent:

61852333, Feb 6, 2001

Filed:

Jun 8, 1999

Appl. No.:

9/328035

Inventors:

Michael R. Moothart - Richardson TX
John M. Dugan - Richardson TX

Assignee:

Alcatel

International Classification:

H01S 313

US Classification:

372 32

Abstract:

A system and method for output power controlled stabilizing system comprises a wavelength limiter which minimizes the wavelength variation of a laser signal light. The wavelength limiter comprises a first and second clamping circuit. The first clamping circuit receives an offset voltage, compares the offset voltage to a first predetermined reference voltage, and outputs the voltage difference between the offset voltage and the first predetermined reference voltage. If the offset voltage rises higher than the first predetermined reference voltage, the first clamping circuit then clamps and keeps the power of the output power controlled wavelength stabilizing system from increasing. The second clamping circuit receives the offset voltage, compares the offset voltage to a second predetermined reference voltage, and outputs the voltage difference between the offset voltage and the second predetermined reference voltage. If the offset voltage drops below the second predetermined reference voltage, the second clamping circuit then clamps and keeps the power of the output power controlled wavelength stabilizing system from decreasing.

US Patent:

55572650, Sep 17, 1996

Filed:

Dec 2, 1993

Appl. No.:

8/161228

Inventors:

Michael R. Moothart - Garland TX
John M. Dugan - Richardson TX

Assignee:

Alcatel Network Systems, Inc. - Richardson TX

International Classification:

G08B 2100

US Classification:

340635

Abstract:

Optical transmit amplifier (24) fault indicator system (46), (78), and (80) indicates the failure of optical transmit amplifier (24) and includes an input loss circuit (46), an output failure circuit (80), and a modulation detector circuit (78). The modulation detector circuit (78) receives a portion (76) of the optical output signal (74) for determining therefrom that a failure in modulation exists in optical output signal (74) of optical transmit amplifier (24). The modulation detector (78) includes a modulation conversion circuit (82) and (84) for converting modulation in the optical output signal (76) into a measurable signal having a level within a first predetermined range in the presence of modulation and a second predetermined range in the absence of modulation. The modulation detector circuit (78) converts the measurable signal to a DC signal and produces a loss of modulation alarm signal (114) in response to a loss of modulation.