1981-09-21
1984-01-31
Lee, John D.
G02B 5172
Patent
active
044286449
ABSTRACT:
A means for aligning components of an optical system without the use of conventional optical equipment is disclosed. This means includes the use of a pair of electrodes in proximity with the light guiding portion of a pyroelectric system element. The absorption of light in the waveguide produces a current in the pyroelectric material tht is monitored at the electrodes. Alignment of the system components is achieved by adjusting their relative position to increase the monitored signal.
REFERENCES:
patent: 4147979 (1979-04-01), Baues et al.
patent: 4196964 (1980-04-01), Papuchon
patent: 4198115 (1980-04-01), Kaminow
Applied Physics Letters, vol. 24, No. 2, Jan. 15, 1974, pp. 81-82, Glass et al., "Optical Gating and Logic with Pyroelectric Crystals".
Applied Physics Letters, 35 (1), Jul. 1, 1979, pp. 40-42, Minakata, Efficient LiNbO.sub.3 Balanced Bridge . . . ".
Review of the Electrical Communication Laboratories, vol 26, No. 9-10, Sep.-Oct. 1978, pp. 1139-1151, Minakata et al., "Temperature Stabilized Optical Waveguide Modulation".
Glass Alastair M.
Kaminow Ivan P.
Olson Donald H.
Bell Telephone Laboratories Incorporated
Gonzalez Frank
Lee John D.
Schneider Bruce S.
Tiegerman Bernard
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