Fiber-coupled electrical-substitution picowatt cryogenic radiometer

2012 ◽  
Author(s):  
N.A. Tomlin ◽  
J.H. Lehman ◽  
S. Nam
Keyword(s):  
Cryogenic Radiometer

Supercontinuum laser-based monochromatic radiant source for detector spectral responsivity characterization in the range 0.9–1.6 μm using absolute cryogenic radiometer

2020 ◽  
pp. 28-33
Author(s):  
A. Yu. Dunaev ◽  
A. S. Baturin ◽  
V. N. Krutikov ◽  
S. P. Morozova
Keyword(s):  
Power Distribution ◽  
Spectral Power ◽  
Feedback System ◽  
Operating Mode ◽  
Spectral Responsivity ◽  
Spectral Power Distribution ◽  
Cryogenic Radiometer ◽  
Supercontinuum Laser ◽  
Radiant Power ◽  
Double Monochromator

An improved monochromatic radiant source with spectral bandwidth of 4 nm based on supercontinuum laser and a double monochromator was included in absolute cryogenic radiometer-based facility to improve the accuracy of spectral responsivity measurement in the range 0.9–1.6 μm. The developed feedback system ensures stabilization of monochromatic radiant power with standard deviation up to 0.025 %. Radiant power that proceeds detector under test or absolute cryogenic radiometer varies from 0.1 to 1.5 mW in dependence of wavelength. The spectral power distribution of its monochromatic source for various operating mode is presented.

Measurement of the single-shot pulse energy of a free electron laser using a cryogenic radiometer

Metrologia ◽  
2010 ◽  
Vol 47 (5) ◽  
pp. 518-521 ◽  
Author(s):  
Masahiro Kato ◽  
Norio Saito ◽  
Kai Tiedtke ◽  
Pavle N Juranić ◽  
Andrey A Sorokin ◽  
...  
Keyword(s):  
Pulse Energy ◽  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
Cryogenic Radiometer

Absorptance measurement for sloping bottom cavity of cryogenic radiometer

2015 ◽  
Vol 23 (10) ◽  
pp. 2733-2739
Author(s):  
衣小龙 YI Xiao-long ◽  
杨振岭 YANG Zhen-ling ◽  
叶新 YE Xin ◽  
王凯 WANG Kai ◽  
方伟 FANG Wei ◽  
...  
Keyword(s):  
Cryogenic Radiometer ◽  
Bottom Cavity ◽  
Sloping Bottom

Absolute power measurements at wavelengths of 1300 nm and 1550 nm with a cryogenic radiometer and a tuneable laser diode

Metrologia ◽  
2000 ◽  
Vol 37 (5) ◽  
pp. 519-522 ◽  
Author(s):  
P Corredera ◽  
M L Hernanz ◽  
J Campos ◽  
A Corr ns ◽  
A Pons ◽  
...  
Keyword(s):  
Laser Diode ◽  
Absolute Power ◽  
Cryogenic Radiometer ◽  
Power Measurements
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