Abstract
A tunable laser optical source equipped with wavelength and mode-hop monitors was developed to compensate for thermal expansion of the medium in holographic data storage.
The laser's tunable range is
, and supplying
of laser diode current provides an output power greater than
. The aberration of output light is less than
. The temperature range within which the laser can compensate for thermal expansion of the medium is estimated based on the tunable range, which is
for glass substrates and
for amorphous polyolefin substrates.
© 2007 Optical Society of America
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