1064 nm Acousto Optic Modulator with 10 ns rise/fall time

 

 

Features

  • Hermetic to MIL-Std 883
  • Rugged laser welded construction
  • Fast rise / fall time
  • High throughput
  • High contrast ratio
  • High PER
  • Wide operating temperature range

Applications

  • Fast optical shutter
  • Optical switch
  • Pulse picker
  • Frequency shifter

 General Description

The EM4 Fiber Coupled Acousto-Optic Modulator is a rugged, hermetic module that has been designed and built using technologies and processes developed for high reliability defense and telecommunications applications.  It is pigtailed with polarization maintaining fiber on the input and output as required and contains internal circuitry for 50Ω RF matching.  With rise/fall times <10 ns it can be used in very fast pulse picking and switching applications.

 A complete data sheet is available for download here.

 

Parameter

Sym.

Condition

Min

Typ.

Max

Unit

Operating Wavelength

λC

  

1040

1060

1080

nm

Input Optical Power (Average)

PIN

      

1

W

Input Optical Power (Peak)

PPEAK

      

500

W

On State Transmission

TTRANS

  

45

55

  

%

Throughput change over

temperature

ΔT

Temp. range from 10 C to 60C, % change relative to 25C Transmission

-10

  

+10

%

Optical Return Loss

RLOPT

Both input and output signals

40

    

dB

Polarization Extinction Ratio

PER

PM input and output fiber

17

20

  

dB

Rise Time

tr

10% to 90% signal @1050nm

    

10

ns

Fall Time

tf

90% to 10% signal @1050nm

    

10

ns

Contrast Ratio

Cr

 

40

    

dB

RF Matching

ZIN

    

50

  

Ω

Electrical Return Loss

RLRF

      

-10

dB

RF Peak Power

PRFPK

 to achieve contrast ratio  1.5 

2.5

3

W
RF Average Power PRFAVG     0.6 0.8 W

RF Center Frequency

RFCF

    

200

  

MHz

Operating Temperature

    

10

  

60

°C

Storage Temperature

    

-40

  

85

°C

Humidity

  

Non condensing

    

90

%

Air Pressure

    

700

  

1060

kPa

Hermeticity

  

MIL-Std 883

    

1E-6

ATM cc/s He