THORLABS Redstone OSA305 User Manual

Redstone™ Optical Spectrum Analyzer Chapter 13: Technical data
Page 73 STN053070-D02
Chapter 13 Technical data
13.1. General Specifications
Specification
Value
Wavelength Range
a
1.0 - 5.6 µm (10 000 - 1786 cm
-1
)
Spectral Resolution
2.0 GHz (0.0625 cm
-1
)
Spectral Accuracy
b
±0.2 ppm
c
Spectral Precision
d
0.2 ppm
c
Wavelength Meter Resolution
e
0.1 ppm
c
Wavelength Meter
Display Resolution
e,f
9 decimals
Wavelength Meter Accuracy
b,e
±0.5 ppm
c
Wavelength Meter Precision
e,g
0.2 ppm
c
Input CW Power (Max)
10 mW (10 dBm)
Input Damage Threshold
h
20 mW (13 dBm)
Power Level Accuracy
i
±0.4 dB
Optical Rejection Ratio
k
40 dB
Level Sensitivity
l
-65 dBm/nm (1.0 - 1.5 µm)
-75 dBm/nm (1.5 - 5.6 µm)
Polarization Dependence
±0.1 dB
Input Fiber Compatibility
FC/PC Connectors
m
All Single Mode Patch Cables, Including Fluoride SM Patch Cables
Silica Multimode Patch Cables with ≤Ø50 µm Core and NA ≤ 0.22
Fluoride Multimode Patch Cables with ≤Ø100 µm Core and NA ≤ 0.26
(Single Mode Patch Cables Provide the Highest Contrast)
Free-Space Input
Accepts Collimated Beams ≤Ø10 mm
Red Alignment Laser Beam Output
Four 4-40 Taps for 60 mm Cage Systems
Uncoated CaF
2
Window Material (Removable)
Operating Temperature
10 °C to 40 °C
Dimensions
541 mm x 224 mm x 533 mm
(21.3" x 8.9" x 21.0")
a. Limited by the bandwidth of the detectors and the optics.
b. For a single mode FC/PC-terminated patch cable at an operating temperature of 20 °C to 30 ºC.
c. Specified in parts per million, which corresponds to nearly seven significant figures (depending on the specification).
For instance, if the wavelength being measured is 1 µm, the Wavelength Meter Precision will be 200 fm.
d. Spectral Precision is the repeatability with which a spectral feature can be measured using the Peak Track tool.
e. Measured in Wavelength meter mode (linewidth <10 GHz), see Section 4.5.
f. Can be set from 0 - 9 decimals and has an automatic option that estimates the relevant number of decimals.
g. Using the same input single mode fiber for all measurements.
h. Limited by the damage threshold of the internal components.
i. Specified using Absolute Power Mode, Zero Fill = 2, and Hann apodization at an operating temperature of 20 °C to
30 °C.
k. See Section 4.8.
l. Minimum detectable power per nanometer using using Zero Fill = 0 and the highest resolution and sensitivity settings.
m. Connectors for other fiber input receptacles are available upon request. Contact techsupport@thorlabs.com for
details.
Each specification is valid for a single mode FC/PC-terminated patch cable, as well as for a collimated free-space beam
with diameter <3 mm and divergence <3 mrad, assuming the included protective window is installed in the free-space
aperture.

THORLABS Redstone OSA305 Specifications

General

Brand	THORLABS
Model	Redstone OSA305
Category	Measuring Instruments
Language	English