Fiber-coupled Dynamic Tunable Bandpass Filter
KEY FEATURES
• Compact Size
• No O-rings
• Low Insertion Loss
• Low Power Consumption
• Narrow Bandwidths
• Excellent Tuning Resolution
• Hermetically Sealed
• Broad Tuning Range
• SM, SM/PM, MM Fiber Coupling Options
• Custom Configurations Available
• Ideal for Real-Time NIR
APPLICATIONS
• Dense WDM Transmission Systems
• Laboratory Test and Measurement Systems
– tuning the center wavelength of broadband sources (white light sources or LEDs)
• Other OEM Applications
Dynamic Tunable Bandpass Filters
The Dynamic Tunable Bandpass Filter adjusts the center wavelength of a narrow band of light over a 100 - 200nm range. It offers very high resolution of ~1.5nm and either single or simultaneous multiple wavelength selection. It is able to precisely and rapidly adjust the wavelength and intensity of the diffracted/filtered light by varying the frequency (see graph) and RF power.
Brimrose offers both free-space and fiber-coupled configurations. AOTFs are used widely in numerous optical systems and applications, especially in industrial or process control near-infrared (NIR) spectroscopy applications.
SPS/SPF II Model AOTF Controller System
Brimrose offers AOTF RF drivers compatible with our AOTF devices. Our AOTF drivers include SPF II drivers, which can control up to four RF output channels, and SPS drivers, which can control up to eight RF output channels. Changing the RF level will vary the intensity of the light being diffracted/filtered.
The Brimrose dynamic tunable bandpass filters are commonly used to dynamically select among different wavelength channels at the receiver end of dense WDM transmission systems.
Other applications include tuning the center wavelength of broadband sources (such as white light sources or LEDs) in laboratory test and measurement systems.
A typical band-pass shape of the selected light by AOTF filter is shown in the diagram at left.
Mode #
Wavelength Range
(nm)
Spectral Resolution
(nm)
RF Frequency
(MHz)
Insertion Loss
(dB)
TEAF-0.40-0.60-2FP
400 - 600
1 - 5
59 - 100
3 - 5
TEAF-0.45-0.7-S-2FP
450 - 700
3 - 9
100 - 180
3 - 5
TEAF-0.9-1.2-UH-2FP
900 - 1200
1
130 - 160
4 - 5
TEAF-1.2-1.7-UH/EH-2FP
1200 - 1700
1.0 - 2.5
80 - 120
~ 5
TEAF-1.5-1.65-UH/EH-2FP
1500 - 1650
1.5 - 2.5
80 - 100
~ 5
TEAF-1.1-2.1-S-2FP
1100 - 2100
4.0 - 15.0
50 - 100
5 - 7
Brimrose offers the fiber coupling options for our all-standard, Fiber-coupled, Acousto-Optic Tunable Filters.
Fiber Type: • Single-Mode (SM) fiber • Single-Mode Polarization Maintaining (SM/PM) fiber • Multimode (MM) fiber
Other fiber types are available on request.
Fiber Connectors: FC, SC, LC, SMA, etc. Other fiber connectors are available on request.
Options: S – Standard Resolution H – High Resolution EH – Extra-high Resolution UH – Ultra-high Resolution
Other wavelengths are available upon request.
The SP Model AO Controllers are high performance RF frequency synthesizers incorporated into a self-contained case with AC power supply. A modular cable with a DB9 connector interface allows frequency control via the Personal Computer USB port (Serial RS232 optional). Using simple commands with any terminal (modem) program (such as ProComm) allows the user to set any frequency from the computer keyboard. In addition, included with the unit is a frequency control program that can be used with any IBM PC computer.
Driver Model #
VFI-XX-YY-SPS-A-C3
VFI-XX-YY-SPF-A-C3
Frequency Range
Matching the AOTF requirements.
Frequency Step Size
4 Hz
10 Hz
Frequency Stability
0.010% absolute (100 PPM); +15oC to +75oC
0.015%; +15oC to +75oC
Frequency Switching Speed
15 ms typ. (from fmin to fmax)
8 ns
Minimum Duration of Each Step
N/A
32 ns for sweeping mode
1 ms for hopping mode (for <300 hops)
15 ms for hopping mode (>300 hops)
Power Output
Optimized for maximum performance of the AOTF device.
Power Control
N/A
12 bit attenuator with 25 dB range (min.)
Modulation
None (TTL or Analog Optional)
Enclosure
The unit will be packaged in a 190 mm (7.5 inch) wide by 90 mm (3.5 inch) high by 220 mm (8.75 inch) deep instrument case. The rear panel heat sink increases the depth to 270 mm (10.5 inches) maximum. The size is exclusive of connectors. A detachable AC line cord and RF cable are provided.
Environmental
Nominal Laboratory conditions: The maximum ambient temperature is +35° C. The unit is not sealed against moisture or condensing humidity.
Output Impedance
50 ohms
Output Connectors
SMA jack on front panel
商品属性 [波长] 1100 - 2100nm