Two spherical lens optical coupler

Details Two spherical lens optical coupler Two spherical lens optical coupler

1988-02-05

1989-06-27

Lee, John D.

350 9620, G02B 632

Patent

active

048423912

ABSTRACT:
An optical coupling apparatus employing two spherical lenses between the optical signal source and the target. Each lens is positioned at its respective focal length from its associated optical element and is adjustable along a single axis. The lens adjustment axes are mutually perpendicular and both are perpendicular to the optical axis between the source and the target. The source may be a laser diode and the target is typically an optical fiber. This structure permits less than precise coaxial alignment between the source and target while maintaining desired optical coupling efficiency.

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Kawano et al., "New Calculations For Coupling Laser Diode to Multimode Fiber," Journal of Lightware Tech. (Mar. 1986, pp. 368-374).
Kawano et al., "Coupling Characteristics of Laser Diode to Multimode Fiber Using Separate Lens Methods," Applied Optics (Jan. 1986, pp. 136-141).
Holzman, "Design Considerations for Lenses Used for Coupling Single- and Multi-mode Fibers," SPIE vol. 500 (1984, pp. 56-66).

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