Conference Publication Details
Mandatory Fields
Yaqoob, Z.,Riza, N. A.,Voelz, D. G.,Ricklin, J. C.
SPIE Conf on Free-Space Laser Communication and Active Laser Illumination III, San Diege CA. 2003
Low-loss wavelength-multiplexed optical scanners using volume Bragg gratings for transmit-receive lasercom systems.
2003
August
Validated
0
()
Optional Fields
369
380369
Low-loss no moving parts free-space wavelength-multiplexed optical scanner (W-MOS) modules for transmit-receive lasercom systems are proposed and experimentally demonstrated. The proposed scanners are realized using volume Bragg gratings stored in dichromated gelatin (DCG) coupled with high-speed wavelength selection such as by a fast tunable laser. The potential speed of these scanners is in the Gigahertz range using present-day state-of-the-art nanosecond tuning speed lasers. A 940-lines/mm volume Bragg grating stored in dichromated gelatin is used to demonstrate the scanners. Angular dispersion and diffraction efficiency of the volume Bragg grating used for demonstration are studied-versus wavelength and angle of incidence to determine the free-space W-MOS angular scan and insertion loss, respectively. Experimental results show that a tunable bandwidth of 80 nm, centered at 1560 nm, delivers an angular scan of 6.25degrees. The study also indicates that an in-line scanner design realized using two similar Bragg gratings in DCG delivers 13.42degrees angular scan, which is more than double the angular scan available from the free-space W-MOS using single volume Bragg grating.Low-loss no moving parts free-space wavelength-multiplexed optical scanner (W-MOS) modules for transmit-receive lasercom systems are proposed and experimentally demonstrated. The proposed scanners are realized using volume Bragg gratings stored in dichromated gelatin (DCG) coupled with high-speed wavelength selection such as by a fast tunable laser. The potential speed of these scanners is in the Gigahertz range using present-day state-of-the-art nanosecond tuning speed lasers. A 940-lines/mm volume Bragg grating stored in dichromated gelatin is used to demonstrate the scanners. Angular dispersion and diffraction efficiency of the volume Bragg grating used for demonstration are studied-versus wavelength and angle of incidence to determine the free-space W-MOS angular scan and insertion loss, respectively. Experimental results show that a tunable bandwidth of 80 nm, centered at 1560 nm, delivers an angular scan of 6.25degrees. The study also indicates that an in-line scanner design realized using two similar Bragg gratings in DCG delivers 13.42degrees angular scan, which is more than double the angular scan available from the free-space W-MOS using single volume Bragg grating.
://WOS:000189421100040://WOS:000189421100040
Grant Details