M1189A-G40L-4
IR Acousto-Optic Modulator
Small water cooled Germanium AO modulator ideal for compact IR laser applications or Q-switching of CO2 lasers.
SPECIFICATIONS
A/R Spectral Range:
9.3μm or 10.6μm (specified)
Interaction Medium:
Single Crystal Germanium
Optical path length:
15mm
Acoustic Velocity:
5.5mm/ms
Centre Frequency (fc):
40MHz
RF Bandwidth (Df):
10MHz
Input Impedance:
50W
Input VSWR:
< 1.7:1 at 40MHz
Optical Insertion Loss:
< 3.5%
Reflectivity:
< 0.5%/Surface
Laser Polarization:
Linear Horizontal, Parallel to Base
Active Aperture:
4 mmH x 10 mmL (alternatives available)
Water Cooling (minimum):
1litre/minute at < 20ºC
Outline Dimensions:
(See reverse)
TYPICAL PERFORMANCE
Input beam diameter:
3mm
Optical access time:
0.35us
Diffraction Efficiency:
> 70% for 50W(9.23um)
> 60% for 50W (10.6um)
Optical Power:
200 Watts *
9.3um
10.6um
Bragg Angle:
33.9 mrad
38.6 mrad
Separation Angle:
67.7 mrad
77.1 mrad
CAUTION when applying CW RF powers in excess of 50W
* For higher powers please contact Isomet
OUTLINE DRAWING
Dimn: inches
Add –M for metric mounting threads
Refer application note AN0901 regarding Coolant Specification
Due to RF drive power dissipation, the M1189 requires water-cooling to prevent thermal runaway. (>1L/min at < 20degC). The integral NC thermal interlock switch opens at 32 degC.
The water cooled case parts are aluminium. It is strongly recommended that a corrosion inhibitor is added to the cooling system.
DRIVERS
Modulator Driver/Amplifier
RFA241
商品属性 [波长] 9.3μm or 10.6μm [上升/下降时间] 470ns [活跃孔径] 4mm [光学材料] Ge