Useful Calculators

Dark matter frequency-mass-coherence time converter

frequency:	Hz
mass:	eV
coherence time:	sec minute hour day year
coherence length:	m

PDA100A/PDA100A2 converter

ADC counts:	counts (16bit, +/-20V)
gain:	dB (Hi-Z)
wavelength:	532 nm 1064 nm
PD:	PDA100A PDA100A2

power: W ( A/W )

Shot noise level calculator

power:	W
wavelength:	nm

shot noise level RIN: /rtHz

Cavity pole calculator

finesse:
round-trip length:	m

cavity pole: Hz / FSR: Hz

* FWHM is the double of the cavity pole.

Fabry-Perot cavity gain calculator

ITM power transmission:
ETM power transmission:

finesse: / gain: / power reflectivity:

Transverse mode spacing calculator

cavity length:	m
RoC 1:	m
RoC 2:	m

TMS: Hz / FSR: Hz

g1: / g2:

Laser frequency stability calculator

wavelength:	nm
stability:	Hz/rtHz

laser frequency: Hz / stability: /rtHz

Rayleigh range calculator

wavelength:	nm
waist radius:	mm
distance from waist:	mm

Rayleigh range: mm / beam radius at z: mm

Diffraction loss calculator

mirror diameter:	mm
beam radius:	mm
incident angle:	deg

Diffraction loss: