Polarization Extinction Ratio Meter
The ERM-202 is a dual channel polarization extinction ratio (PER) meter specifically designed to simultaneously measure the PER and power ratio of a device with two polarization maintaining (PM) outputs, such as a Y-branch fiber gyro IOC, PM coupler (PMC), or polarization beam splitter (PBS), as well as evaluate the performance (output DOP) of depolarizers. A lower-cost single-channel version, which can later be upgraded to dual-channel, is also an option. With a PER dynamic range of 50 dB and an angular resolution of 0.06°, this instrument outperforms all competitors in its class. Its bright graphic OLED display allows information to be comfortably seen at large viewing angles and at a distance. The instrument has 4 measurement speeds ranging from 0.1 to 1 second/cycle, with the high speed for live alignment and the low speed for accuracy. PER, axis angle, power ratios, and optical power are automatically measured and displayed on the OLED screen. The measurement data can also be stored and recalled at the touch of a button for comparison purposes. The ERM-202 is ideal for PM fiber pigtailing of modulators, waveguides, and laser diodes, as well as for PMC and PBS manufacturing, PM fiber connectorization, depolarizer characterization, PM fiber fusion splicing, PM fiber coil production and quality assurance for fiber gyros.
Applications:
IOC PER & coupling ratio tests
PMC & PBS PER & coupling ratio tests
Laser diode PM fiber pigtailing
PM fiber patch cord production
PM fiber fusion splicing QA
PM fiber coil and fiber gyro QA monitoring/measurement
Unique Features:
Two measurement channels
Simultaneous PER & power ratio testing
>50 dB PER range
Bright OLED display
High angular resolution
Store and recall functions
Specifications
Operating Wavelength Range1
1260 to 1620 nm
960 to 1160 nm
Calibrated Wavelengths2
1550 and 1310 nm
980 and 1064 nm
PER Dynamic Range
>50 dB
>40 dB
PER Ranges3
0 ~ 50 dB for input power of −5 to 10 dBm
0 ~ 30 dB for input power >−25 to −5 dBm
0 ~ 40 dB for input power of 0 to 10 dBm
0 ~ 30 dB for input power >−20 to 0 dBm
Input Optical Power Range
−30 dBm to 10 dBm
−20 dBm to 10 dBm
PER Resolution
0.1 dB
PER Accuracy
±0.15 dB for ER < 30 dB
Angular Resolution
0.06°
Angular Accuracy
±1°
Power Measurement Accuracy
±0.5 dB
Power Resolution
0.02 dBm (PER < 30)
0.2 dBm (PER > 30)
Measurement Speeds
0.1, 0.2, 0.4, 1 seconds
(Single channel version also has 10s measurement speed and manual polarizer control mode)
Connector Type1
Free space adapter for FC connector
Optical Power Damage
Threshold
300 mW
Operating Temperature
0 °C to 40 °C
Storage Temperature
−20 °C to 60 °C
Front Panel Display
OLED graphic display
Communication Interfaces
USB, RS-232, Ethernet, GPIB
Analog Output4
0~5V via BNC for each channel
Power Supply
100-240 VAC, 50-60 Hz
Dimensions
2U 19” half rack width
14” (L) x 8.5 “ (W) x 3.5” (H)
Notes:
1. Other wavelength ranges and connector types may be available.
2. Other calibrated wavelengths available.
3. For measurement at or slower than 0.4 s/cycle.
4. Analog output voltage scales with log of measured power after polarizer.
Ordering Information:
Sample Configuration: ERM-202-2-13/15-FC
Dual Channel, 1310/1550 nm, Polarization Extinction Ratio Meter with FC free space adapter (Other connector types may be available)
Sample Configuration: ERM-202-1-13/15-FC
Single Channel, 1310/1550 nm, Polarization Extinction Ratio Meter with FC free space adapter (Other connector types may be available).
商品属性 [波长] 1260 to 1620 nm/960 to 1160 nm