Measurements at 351 nm of temporal dispersion in fibers Page: 4 of 26

Pulses with extended tails were observed in each streak that was recorded at about
400 counts.
6. We frequently had difficulty obtaining adequate transmittance through
50- m single fibers. Some of our problems probably were related to inexperience in
cleaving this particular fiber.
II. Test arrangement.
A schematic of the arrangement is shown in Fig. 1. A single 125-ps, 1053-nm
pulse was selected from a mode-locked train that was emitted by a Nd:YLF oscillator,
and injected into a chirping fiber. The 16-nJ output from this fiber was injected into
the front end of the OSL chain which amplified the pulse energy to 4 mJ and relayed
the pulse to the compressor gratings. Compression provided 1053-nm, 20-ps, 1-mJ
pulses, which were converted by tripling in KDP crystals into 40- J, 351-nm pulses.
One half of the energy in the 351-nm pulse was injected into a UV Launch
Optic [Ref. 1]which was attached by an SMA coupler to the fiber under test. The
remainder of the UV light propagated over an air path. Each streak record
contained light from both of these channels. Color filters were used to prevent
entry of 527-nm or 1053-nm light into the fibers.
chirper 16 nJ
125 ps
Kuide Nd:YLF Pulse 1053-nm
grating
OSL small-amplifier chain.5Image
relaying. Net gain 2.5 x 10
grating
doubler
mixer test fiber
Launch S20 streak
40 J Optic L iz
20 ps
351-nm
Fig. 1. Diagram of the arrangement for measuring dispersion at 351 nm in optical fibers.

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Griffith, R; Milam, D; Sell, W & Thompson, C. Measurements at 351 nm of temporal dispersion in fibers, report, November 4, 1998; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc738822/m1/4/ocr/: accessed May 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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