Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1990-11-15
1991-12-24
Eisenzopf, Reinhard J.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
H04B 1000
Patent
active
050757946
ABSTRACT:
A device for providing an optical feedback path for a receiver comprises a header including a base having a major surface and first, second and third leads. The first and second leads extend through the base to form first and second posts on the major surface of the base and the third lead is electrically connected to the base. The portion of the first and second leads extending through the base are surrounded by electrical insulation so that the first and second leads are electrically insulated from the base. A submount comprising a flat insulating block with a layer of gold on its top and bottom surfaces is solder-bonded to the major surface of the base and the gold layer on the top surface of the submount is wire-bonded to the base. An LED is solder-bonded to the top surface of the submount and wire-bonded to the first post on the major surface of the base, the LED emitting optical radiation when it is forward biased. A P-I-N diode is also solder-bonded to the top surface submount and wire-bonded to the second post on the major surface of the base of the header. The P-I-N diode detects the optical radiation emitted by the LED. In order to insure that the light emitted by the LED is detected by the P-I-N diode as is required to establish a feedback path for a receiver, the standard header cover with a glass window is utilized. However, to form an optically reflecting surface, the interior surface of the glass window is illustratively metallized by platinum sputtering followed by gold plating.
REFERENCES:
patent: 3611173 (1971-10-01), Lafayette et al.
patent: 3955149 (1976-05-01), Trilling
patent: 3972004 (1976-07-01), Libs
patent: 4284960 (1981-08-01), Ryan
patent: 4625105 (1986-11-01), Hentschel
patent: 4744105 (1988-05-01), Kasper
Considerations for Optical Receiver Design, IEEE Journal on Selected Areas in Communications vol. SAC-1, No. 3, 4/83, pp. 524-532.
AMP Incorporated
Eisenzopf Reinhard J.
Pascal L.
LandOfFree
Reflective opitical feedback element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reflective opitical feedback element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective opitical feedback element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-48520