MULTI-WAVELENGTH METER 438 Series
Accurate, reliable, and fast WDM wavelength testing.
The 438 Series Multi-Wavelength Meter from Bristol Instruments combines proven Michelson interferometer-based technology with fast Fourier transform analysis in order to measure the wavelength, power, and OSNR of as many as 1000 discrete optical signals. With features such as high accuracy, 10 Hz measurement rate, and a broad operational range of 1000 to 1680 nm, the model 438 provides the most precise, effifi cient, and versatile wavelength testing of optical transceivers and WDM signals.
Two versions of the 438 Multi-Wavelength Meter are available. The model 438A is the most precise, providing an accuracy of ± 0.3 pm. For less exacting test requirements, the model 438B is a lower-priced alternative with a wavelength accuracy of ± 1.0 pm. Continuous calibration with a built-in wavelength standard ensures the utmost confifi dence in the test results.
The rugged design of the 438 Multi-Wavelength Meter provides long-term reliable operation, backed by a fifi ve-year warranty on all parts and labor. This results in less downtime and the lowest cost of ownership available.
Key Features:
• Wavelength accuracy as high as ± 0.3 pm.
• Continuous calibration with a built-in wavelength standard.
• Measurement confifi dence level of ≥ 99.7%.
• Power measured to an accuracy of ± 0.5 dB.
• Automatically calculates OSNR to > 40 dB.
• Automatic reporting of SMSR.
• Fastest measurement rate of 10 Hz.
• Broad operational range of 1000 nm to 1680 nm.
• Operates with CW and modulated signals.
• Convenient touch-screen display reports measurement data in a variety of formats.
• Interfacing via SCPI using USB, Ethernet, or GPIB.
• Rugged design for manufacturing environments.
• Five-year warranty covers all parts and labor.
Software is available to convert the system to a high-resolution OSA.
MODEL
438A
438B
OPTICAL SIGNAL
CW and modulated
WAVELENGTH
Range
Option -001: 1270 – 1680 nm (179 – 236 THz) Option -002: 1000 – 1680 nm (179 – 300 THz)
Accuracy 1, 2, 3
± 0.2 parts per million (± 0.3 pm at 1550 nm) ± 0.65
parts per million (± 1.0 pm at 1550 nm)
Differential Accuracy 4
± 0.15 parts per million
± 0.5 parts per million
Minimum Resolvable Separation 3, 4
10 GHz (equal power lines input)
Calibration
Continuous - built-in stabilized single-frequency HeNe laser
Continuous - built-in standard HeNe laser
Display Resolution
0.00001 nm
0.0001 nm
Units 5
nm, cm-1, THz
POWER
Calibration Accuracy
± 0.5 dB (± 30 nm from 1064, 1310, and 1550 nm)
Linearity 4
± 0.3 dB (1000 – 1600 nm), lines above -30 dBm
Polorization Dependence
± 0.5 dB (1000 – 1600 nm)
Display Resolution
0.01 dB
Units
dBm, mW, μW
SIGNAL-TO-NOISE RATIO 4, 6
> 40 dB (100 averages), ≥ 100 GHz channel spacing > 35 dB (100 averages), ≥ 50 GHz channel spacing
SIDE-MODE-SUPPRESSION RATIO 4
> 30 dB at ≥ 0.7 nm from peak
OPTICAL INPUT SIGNAL
Sensitivity
Single-line input
-40 dBm (1270 – 1600 nm), -35 dBm (1000 – 1270 nm), -30 dBm (1600 – 1650 nm)
Multiple-line input 4
30 dB below total input power, but not less than single-line input sensitivity
Maxiumum Power
+10 dBm, sum of all lines input (displayed level), +18 dBm, sum of all lines input (safe level)
Return Loss
35 dB (UPC connector), 50 dB (APC connector)
Maximum Number of Lines 7
1000
MEASUREMENT RATE (TIME) 8
Option -001: 10 Hz (0.1 s) Option -002: 6 Hz (0.17 s)
MEASUREMENT MODES
Data Mode
Single channel, list by wavelength table, list by power table
Delta Mode
Difference of measured wavelengths from ITU grid values
Difference of measured wavelengths and powers from user-defi ned reference channel
Drift Mode
Difference between the measured maximum and minimum values of wavelength and power
Difference between the measured current and start values of wavelength and power
INPUTS/OUTPUTS
Optical input
9/125 μm single-mode fi ber (FC/UPC or FC/APC)
Instrument Interface
Library of commands (SCPI) via USB 2.0, Ethernet, and optional GPIB
ENVIRONMENTAL 4
Warm-Up Time
< 15 minutes
None
Temperature | Pressure | Humidity
+15°C to +30°C (-10°C to +70°C storage) | 500 – 900 mm Hg | ≤ 90% R.H. at + 40°C (no condensation)
DIMENSIONS AND WEIGHT
3.5" x 17.0" x 15.0" (89 mm x 432 mm x 381 mm) | 17 lbs (7.65 kg)
POWER REQUIREMENTS
90 - 264 VAC, 47 - 63 Hz, 80 VA max
WARRANTY
5 years (parts and labor)
(1) Defi ned as measurement uncertainty, or maximum wavelength error, with a confi dence level of ≥ 99.7%.
(2) Traceable to an NIST standard (SRM 2517a).
(3) For multi-wavelength measurement, ≥ 20 GHz channel separation is required to achieve specifi ed wavelength accuracy.
(4) Characteristic performance, but non-warranted.
(5) Data in units of nm and cm-1 are given as vacuum values.
(6) For lines above -25 dBm, 0.1 nm noise bandwidth.
(7) OSNR is reduced as the number of lines is increased.
(8) For single-line input. Multiple-line input may reduce the measurement rate
商品属性 [波长范围] 1270 – 1680 nm (179 – 236 THz) 1000 – 1680 nm (179 – 300 THz)