THORLABS Redstone OSA305 Manual

Optical Spectrum Analyzers Chapter 11: Technical data
Page 35 STN053070-D02
Chapter 11 Technical data
11.1. Common Specifications
Specification
V
alue
OSA20xC Redstone OSA305
Spectral Resolution 7.5 GHz (0.25 cm
-1
) 1.9 GHz (0.063 cm
-1
)
Spectral Accuracy
a
±2 ppm
b
±0.2 - 1.0 ppm
b
Spectral Precision
c
1 ppm
b
1 ppm
b
Wavelength Meter
Resolution
d
0.1 ppm
b
0.1 ppm
b
Wavelength Meter
Displa
y
Resolution
d,e
9 decimals 9 decimals
Wavelength Meter
Accurac
y
a,d
±1 ppm
b
±1 ppm
b
Wavelength Meter
Precision
d,f
0.2 ppm
b
0.2 ppm
b
Input CW Power (Max) 10 mW (10 dBm) 10 mW (10 dBm)
Input Damage
Threshold
g
20 mW (13 dBm) 20 mW (13 dBm)
Power Level Accuracy
h
±1 dB ±0.4 dB
Optical Rejection Ratio
i
30 dB 40 dB
Polarization
Dependence
±1 dB ±0.1 dB
Input Fiber
Compatibility
FC/PC Connectors
k
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
Free-Space Input
Accepts Collimated Beams ≤Ø6 mm
Red Alignment Laser Beam Output
Four 4-40 Taps for 30 mm Cage
S
y
stems
Accepts Collimated Beams ≤Ø10 mm
Red Alignment Laser Beam Output
Four 4-40 Taps for 60 mm Cage
S
y
stems
Dimensions
320 mm x 149 mm x 475 mm
(
12.6" x 5.9" x 18.7"
)
541 mm x 224 mm x 533 mm
(
21.3" x 8.9" x 21.0"
)
a. After a 20-minute warm-up (for OSA20xC), for a single mode FC/PC-terminated patch cable at an operating
temperature of 20 ºC to 30 ºC.
b. 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.
c. Spectral Precision is the repeatability with which a spectral feature can be measured using the Peak Track tool.
d. Measured in Wavelength meter mode (linewidth <10 GHz), see Section 4.6.
e. Can be set from 0 - 9 decimals and has an automatic option that estimates the relevant number of decimals.
f. Using the same input single mode fiber for all measurements.
g. Limited by the damage threshold of the internal components.
h. Specified after a 20-minute warm-up (for OSA20xC) using Absolute Power Mode, Zero Fill = 2, and Hann apodization
at an operating temperature of 20 ºC to 30 ºC.
i. See Section 4.9.
k. 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