Isomet: Acousto-Optics: Acousto-Optic Tunable Filters

AOTF Bragg cells are solid state electronically tunable optical filters. Precise wavelength selection is achieved by applying the appropriate RF drive frequency. Compared to conventional techniques, AOTFs offer continuous and agile tunability, fast access times and narrow spectral bandwidths, making these filters ideal for a wide range of spectroscopy and remote sensing applications.

Model	Spectral Range (µm)	Active Aperture (sq. mm)	Acceptance Angle (Deg.)	Optical Bandwidth (nm)	Drive Frequency (MHz)
AOLF-615-1049	VIS	2.5x2.5	3.5 - 4.5	1.0 - 6.0	109 - 65
AOLF-615-1082	VIS	2.5x2.5	3.5 - 4.5	1.0 - 6.0	109 - 65
AOTF614-08	VIS,NIR	5x5	3.5 - 6.0	1.0 - 22.0	140 - 35
AOTF614-16	VIS,NIR	5x5	2.5 - 4.2	0.6 - 11.0	140 - 35
AOTF614-24	VIS,NIR	5x5	3.5 - 6.0	0.4 - 7.0	140 - 35

AOTF920-14	NIR	5x5	3.4 - 6.1	2.0 - 27.0	95 - 26
AOTF920-20	NIR	5x5	2.6 - 4.9	1.5 - 18.5	95 - 26
AOTF920-24	NIR	5x5	2.8 - 5.0	1.0 - 15.5	95 - 26
AOTF1331	mid-IR	7x7	5	30 - 50	24 - 39

AOTF1550-SLS	1550nm	3x3	-	2	81 - 84
AOTF1110-VB	VIS,NIR	10x10	5.7 (nominal)	Variable	80 - 50
OSTF	VIS-NIR	5x5	4 (nominal)	1.0 - 12	110 - 45

AO tunable filter drivers see Power Amplifiers/Electronic Modules