Set of Nd:glass laser rod and matching size Xe flashlamp, new, vintage

Description

The set consists of a silicate Nd:glass laser rod, 6.0 mm dia. x 100 mm length, and a linear pulsed Xe flashlamp of matching discharge size 5.0 mm dia. x 90 mm length (picture #1).
Both are new, never used, in perfect condition, vintage, manufactured around 80's. The laser rod is a research grade type, has about 2.0 % neodymium oxide doping, good for free-running or for Q-switch operation. Its lateral surface is slightly ground to avoid lasing in non-collinear modes (whispering gallery modes). It has perfect optical quality, in bulk and at both ends (see through, picture #2). The flashlamp is type INP-5/90A-1, made in former USSR. A label from the original package of the lamp is displayed in the last picture.
Data for the lamp follows. Plasma discharge size: 5 mm dia. x 90 mm length, it matches the Nd:glass rod length; total lamp length, with electrodes: 210 mm. To be used with this type of laser rod (Nd:glass), the repetition frequency of the lamp should be low, up to 1 Hz (water cooled) or about 2 shots/minute, in air convection cooling. Though the electrodes look similar, they are polarized, and the anode is marked with the (+) sign and the Russian letters indicating the lamp type. The cathode side has the marking letters OTK, meaning "quality control" in Russian. The following nominal parameters are from the original data sheet of the lamp. For low repetition frequency regime, i.e., below 1 Hz, discharge energy 12 J - 110 J, no liquid cooling necessary, estimated lifetime 4 x 10
5
pulses, simmer mode desired but not necessary. If a higher repetition frequency regime is desired for the lamp (used with a Nd:YAG rod), i.e., for repetition frequency of 20 Hz - 100 Hz, discharge energy 12 J - 36 J, liquid (distilled water) cooling necessary, estimated lifetime (2.5 - 10) x 10
5
, simmer mode necessary. Data about the main RLC discharge circuit, the simmer mode power supply, and the trigger circuit for the lamp: pulse duration T (at 0.35 of peak current) 80 us - 150 us (us = microsecond); energy storage capacitor voltage 650 V - 1500 V; simmer current (1 - 2) A; min. voltage (infinite load) to start the simmer mode 1000 V; series trigger scheme; trigger voltage (in 100 kiloohm load) 16 kV - 24 kV; min. trigger voltage (in 20 kiloohm load) 8 kV; trigger pulse duration 1 us - 5 us; series coil inductance to have an almost damped RLC circuit (L = T
2
/(9C), where L = coil inductance, C = energy storage capacitor capacitance).
For other details of the discharge circuit design, please inspire yourself from the Catalogue Verre et Quartz, at: flashlamps-vq.com/CatalogueVQF.pdf, and from the course "Flashlamps power supplies and triggering" at http://pe2bz.philpem.me.uk/Lights/-%20Laser/Info-902-LaserCourse/c04-04/mod04_04.htm. Intended for laser professionals or for laser hobbyists. Also as laser history collectible items.