Electric lamp or space discharge component or device manufacturi – Process – With testing or adjusting
Patent
1993-04-02
1994-06-21
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
With testing or adjusting
445 28, 445 64, 29468, 29593, 29705, G02B 642
Patent
active
053224639
ABSTRACT:
A process for assembling a laser and an apparatus used to assemble a laser is disclosed. The laser contains, among other components, a semiconductor chip, a lens and an optical fiber. The chip and lens are disposed in a housing. The optical fiber is disposed in a transmission assembly. The process replaces a tedious manual method for aligning the lens housing and the transmission assembly. The process uses an apparatus which separates each of the plurality of leads on the lens housing from each other. The apparatus restrains the lens housing while the housing is placed in contact with the transmission assembly. The apparatus provides electrical contacts which are placed into electrical connection with the leads on the lens housing. Electrical current is then provided which is conducted to the chip. The chip generates a beam of light which is focused by the lens into the fiber and then transmitted by the fiber. The power of the beam of light in the fiber is measured. The position of the lens housing relative to the transmission assembly is automatically adjusted until the power of the beam of light reaches an acceptable level. The lens housing is then fastened to the transmission assembly and the resulting laser, assembled and aligned, is released from the apparatus. Another lens housing is conveyed into the apparatus and the process is repeated.
REFERENCES:
patent: 4790618 (1988-12-01), Abe
patent: 4817849 (1989-04-01), Yamamoto et al.
patent: 5215489 (1993-06-01), Nakamura
AT&T Bell Laboratories
Botos Richard J.
Ramsey Kenneth J.
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