Referenced Items are not available for this document.
A 25-channel, 1-bit, free-space, nematic liquid crystal (NLCU) spatial light modulator (SLM)-based optical time delay unit (OTDU) is demonstrated with worst case electrical signal-to-noise ratios (SNR's) ranging from 50-60 dB for various delay/no-delay modes of operation and with a worst case -42,3-dB electrical channel isolation/crosstalk level. For comparison, single channel performance neglecting crosstalk noise but including within-channel leakage noise gives electrical SNR's from 74-85 dB, indicating that the leakage signal in this OTDU is minimal compared to crosstalk, To lower crosstalk, path-difference compensated imaging optics must be used by the OTDU.<
Published in:
Photonics Technology Letters, IEEE
(Volume:7
,
Issue:
11
)
Date of Publication: Nov. 1995
- Page(s):
- 1285 - 1287
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 5135902
- Digital Object Identifier :
- 10.1109/68.473473
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Nov. 1995
- Sponsored by :
- IEEE Photonics Society
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