Optoelectronic device having a coupling comprising a lens and ar

Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector

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385 93, G02B 642

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active

051075377

ABSTRACT:
An optoelectronic device with a coupling is provided, comprising a lens (10), between an optical transmission fiber (13) and a semiconductor laser diode (2), which device is provided with a holder (1) for the laser diode, a holder (12) for the optical transmission fiber and an intermediate piece (16) present between these two holders, the spherical lens (10) being accommodated in the cover (9) of the holder (1) of the laser diode (2), while the holder (12) of the transmission fiber contains a hollow glass rod (14) in which a core portion (11) of the transmission fiber is accommodated, the end (15) of the glass rod and the fiber core being flat and polished, while the intermediate piece (16) has a sleeve shape and slides with exact fit over the cover (9) of the holder of the semiconductor laser diode (2), which sleeve-shaped intermediate piece has two grooves spaced some distance apart, at which grooves the intermediate piece and the cover of the holder of the semiconductor laser diode are fastened to one another by means of a number of laser welds after axial alignment, while furthermore the ends of the intermediate piece (16) and the holder (12) for the transmission fiber (11) facing one another have flat surfaces perpendicular to the axial alignment direction, which surfaces are fastened to one another with a plurality of laser welds after transversal adjustment.

REFERENCES:
patent: 4726648 (1988-02-01), Haberland et al.
patent: 4790618 (1988-12-01), Abe
patent: 4803689 (1989-02-01), Shibanuma
patent: 4927228 (1990-05-01), Van De Pas

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