PPT Slide

c

NHI/YMMT/0001/00

NTT 1996

P

rototype components

Transmitter module

Receiver module

SELD

array

(GaAs/AlGaAs)

Collimating lens

array

Adjustable liquid

prism

Fiber collimator

D

imensions: 8 x 8 or 1 x 8; Cell spacing: 250 ?m

Wavelength: 850-853 nm

Output power: 1.0-2.0 mW

Planar microlens array

Focal length: 650 um; Cell spacing: 250 um

Aperture diameter: 28 mm

Deflection angle (max.): +/-1.5 deg [Applied voltage: +/-1.0 V]

Beam diameter: 200 ?m

Photo diodes

Si pin

Aperture diameter: 20 um

PSD-S2044 (Hamamatsu Photonics Corp.)

Positioning error: < 2.5 um

x-y positioning

sensor

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