Robertson, B and Zhang, Z and Yang, H and Redmond, MM and Collings, N and Liu, J and Lin, R and Jeziorska-Chapman, AM and Moore, JR and Crossland, WA and Chu, DP (2012) Application of the fractional Fourier transform to the design of LCOS based optical interconnects and fiber switches. Applied Optics, 51. pp. 2212-2222. ISSN 1559-128XFull text not available from this repository.
It is shown that reflective liquid crystal on silicon (LCOS) spatial light modulator (SLM) based interconnects or fiber switches that use defocus to reduce crosstalk can be evaluated and optimized using a fractional Fourier transform if certain optical symmetry conditions are met. Theoretically the maximum allowable linear hologram phase error compared to a Fourier switch is increased by a factor of six before the target crosstalk for telecom applications of -40 dB is exceeded. A Gerchberg-Saxton algorithm incorporating a fractional Fourier transform modified for use with a reflective LCOS SLM is used to optimize multi-casting holograms in a prototype telecom switch. Experiments are in close agreement to predicted performance. © 2012 Optical Society of America.
|Divisions:||Div B > Photonics|
|Depositing User:||Cron job|
|Date Deposited:||16 Jul 2015 13:16|
|Last Modified:||04 Oct 2015 02:00|