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HighFinesse-Ångstrom Wavelength meters

Laser Spectrum Analyzer - LSA

Absolute accuracy: 6000 MHz, resulution: 1000 MHz

 Sensitivity: 5 nJ @ 633 nm
 Low stage spectral resolution: (λ/ΔλFWHM): 500
 High stage spectral resolution (λ/ΔλFWHM): 20000 (SM fiber),
    10000 (50µm fiber)
 max. spectral range: 3 THz
 linewidth accuracy : 10%
    min. linewidth Δλ/λ= 2*10-5 (e.g. 10pm @ 633nm)
    max. linewidth: 1.5 THz
 Built-in light source for autocalibration

  NEW: Mid-IR Laser Spectrum Analyzer: LSA IR-III
Click here for more information!

The Laser Spectrum Analyzer is designed to analyze the multi-line or broadband spectrum of light sources like cw and pulsed lasers, gas discharge lamps, super luminescence diodes, semiconductor laser diodes and LEDs.

Technical Data  LSA
Measurement range [nm] Standard

UV

UV-II

UV-II-Vis

IR-I

IR-II

IR-III (7)
350-1120

248-1100

192-800

192-1190

800-1750

1000-2250

2000-11000
yes

yes

no

yes

yes

no

yes
Absolute accuracy (4)

192-370 nm [pm] (1)

370-1100 nm [MHz]

1100-2250 nm [MHz]
6

6000

12000
Quick coupling accuracy (with MM fiber) [MHz] 12000
Wavelength deviation sensivity

248-370 nm [pm]

370-1100 nm [MHz]

800-1750 nm [MHz]
5

3000

5000
Spectral resolution

Standard, UV

IR
20000(SM),10000(MM)

4000(SM),2000(MM)
Linewidth High stage (2)

Accuracy

Min. linewidth [MHz]

Max. linewidth [THz]
10%

3000 (3)

2
Measurement speed [Hz] (5)
(depending on PC hardware and settings)


Data aquisition

Wavelength calculation

Linewidth calculation

Pattern display
400

20

20

15
Required input energy [µJ]
(or power [µW]) (6)
Standard

UV

IR
0.0001-0.04

0.0001-0.1

0.02-2
Defraction grating
FSR (Ghz) ~5500
Coupling fiber diameter [µm] 50 µm or SM fiberset
Calibration Built-in calibration (8)
Calibration period ≤1 month (will be detected and done automatically)
Warm-up time No warm-up time under constant ambient conditions
Dimensions L x W x H [mm] 325 x 180 x 77
Weight [kg] 2.8
Interface High-speed USB 2.0 connection
Power supply Power consumption <2.3 W, supply directly via USB cable; IR-III: external power supply included; IR-I and WSU via USB or external power supply possible

(1) With multi mode fiber   (2) Only for standard range of 370-1100nm   (3) But not better than 5% of the linewidth
(4) According to 3σ criteria   (5) Without auto-calibration usage   (6) The cw power interpretation in [µW] compares to an exposure of 1s (generally the energy needs to be divided by the exposure time to obtain the required power)
(7) For further information on IR-III devices see MID-IR section   (8) not IR-III, external calibration source needed, e.g. SLR-1532

Available Options

» Linewidth option - L

Included in Delivery (standard version)

Optical unit LSA
USB connection cable (optical unit - computer)
1x 50µm Multimode fiber 5 m
2 singlemode fibers on choice (400nm, 460nm, 630nm, 780nm, 980nm avaible)
2x Collimators for coupling light into fibers
CD-ROM with userfriendly software for operation and measurement
Operation manual
Certificate

Links

» LSA Product Sheet [PDF, 164 kB]
» LSA IR-III Product Sheet [PDF, 229 kB]


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Last update: 13.01.2014 © HighFinesse GmbH 2014