Fiber-coupled Acousto-Optic Modulators
KEY FEATURES
• Compact Size
• Rugged Design
• Low Insertion Loss
• Fast Switching Speed
• Hermetically Sealed
• Low RF Drive Power
• Stable Performance
• Custom Configurations Available
APPLICATIONS
• TTL/Digital Amplitude Modulation
• Analog Amplitude Modulation
• Fast Attenuator
• Gain Tilt Control
• EDFA Power Control
• Loop-back Switch
• Telecommunications
• Fiber Sensing
• Pulse Picking, Q-Switching
• Spectroscopy
• Fiber Lasers
• OEM Designs
Fiber-coupled Acousto-Optic Modulators
Brimrose all fiber optic, electronically controllable modulators allow the user to vary the output light amplitude, time duration, and periodicity/frequency. Insertion Loss can be as low as 2 dB, Extinction Ratio can be as high as 70 dB, rise times can be down to 5 nsec, periodicity can be up to several hundred MHz. Applications include switching, pulse picking, fast attenuator, etc. Wavelengths can range from near UV to near IR. A specialized application of modulators is the Programmable Attenuator. Attenuators are a key element in the design of fiber optic transmission systems. Attenuators are used to match the optical power level to the dynamic range of receivers, adjust the input and output levels in EDFAs, equalize the power between different DWDM channels and test the general performance of systems under varying optical power conditions. Our fiber-coupled AO products are housed in environmentally stable packages, which offer superior resistance to humidity and temperature, and are suitable for laboratory as well as various OEM applications and instrumentation.
Brimrose offers a large variety of RF drivers compatible with our AO Modulators. A typical AO RF driver consists of an RF oscillator, amplitude modulation scheme and RF amplifier. Changing the RF power level will vary the intensity of the transmitted light.
Typical Specifications
ON/OFF Extinction (dB)
> 50
Insertion Loss (dB)
< 2.5
Back Reflection (dB)
< -50
Low Electric Power Consumption (dBm)
< 23
Operating Wavelength Range (nm)
± 25
Model #
Wavelength
(nm)
Center
Frequency
(MHz)
Rise Time
(ns)
Modulation
Bandwidth
(MHz)
Fiber Type
TEM-110-10-55-2FP
380-1600
110
55
10
SM or SMPM
TEM-200-25-20-2FP
380-1600
200
20
25
TEM-250-50-10-2FP
380-1600
250
10
50
TEM-500-100-5-2FP
380-1600
500
5
100
IPM-200-25-20-2FP
1000-2100
200
20
25
IPM-500-100-5-2FP
1000-2100
500
5
100
AMM-55-8-70-2FP
1000-2500
55
70
8
AMM-100-20-25-2FP
1000-2500
100
25
20
The 3-port, fiber-coupled version is available, as well.
The Fiber coupled AOM models shown above represent some examples of our fabrication capabilities.
In addition, other wavelengths, frequencies or configurations are available.
Driver Model #
FFA-XX-B1-FY
FFA-XX-B2-FY
Frequency (MHz)
XX MHz (compatible with the AO Device)
Frequency Control
Quartz crystal referenced phase locked loop
Frequency Accuracy (%)
0.015
Harmonic Content (dBc)
≤ - 20
Frequency Stability
0.0015% minimum after 15 minute warm-up
Output Power
Power is optimized for peak efficiency with supplied AO device.
Output Protection
Power amplifiers used will tolerate an infinite V.S.W.R. without damage. Rated power is available only when a proper RF load is connected.
Rise/Fall Time
To match AO Modulator requirements
Modulation Type
Analog amplitude modulation
TTL compatible
Modulation Rate
To match AO Modulator requirements
Modulation Input
50 Ω; 0-1 V
330 Ω; 0-5 V
Operating Power
90-240 VAC, 50-60 Hz, 55 watts max.
Enclosure
The unit will be packaged in a 190 mm (7.5 inch) wide by 100 mm (4 inch) high by 220 mm (8.75 inch) deep instrument case. The rear panel heat sink increases the depth to 240 mm (9.75 inches) maximum. The size is exclusive of connectors. A detachable AC line cord and RF cable are provided.
Environmental
Nominal Laboratory Conditions: The maximum temperature is +35° C. The unit is not sealed against moisture or condensing humidity.
商品属性 [波长] 380-1600nm [上升/下降时间] 20ns [操作频率] 25MHz [带宽] 200MHz