Page 205 - Tunable Lasers Handbook

5 Dye Lasers 183
TABLE 7 Performance of Flashlamp-Pumped Dye Lasera

Converter Output Pulse %,
Excitation Dye dq e energy duration Efficiency Reference

Linear
1 Coumarin 501 Stilbene 120
I
0.19 mhl 0.25 mhl 7J -3 ps 1.0 [661
12 Rhodamine 6G
0.08 mM 40 J 7 ps 0.1 [691
Coaxial
Rhodamine 6G.
0.15 mh.1 8J 5 ps 0.3
0.0’72 mM 300J lops 0.8
Transverse
6 Rhodamine 6G
0.8 mR.1 -5 Jh -12ms 0.6 [671
16 0.025 mIv1 Coumarin
480
0.2mM 140 Jr 5 ps 1.8 t681
OAdapred from Duarte [37]. with permission.
hProvides an average power of 200 W at a prf of 50 Hz.
.Provides an average power of 1.3 kW at a prf of 10 Hz.

terrain at a speed of 16 kmhour for a distance of 3.5 km. The performance mea-
sured prior and following the displacement test is given in Table 9.
Note that the fluid system was composed of a stainless steel reservoir and all
connections are made of Teflon tubing. The Teflon tubing connecting the reser-
voir and the laser chassis is concentric with an outer flexible stainless steel pro-
tective sleeve. The dye flows through the laser head at a linear speed of 2.75 ms.
Single solutions of rhodamine 590 have been used in this system for periods in
e.icess oj’ one year:

3.3 Master-OsciIlator/Forced-Oscillator Configurations
In flashlamp-pumped dye lasers. amplification of the master-oscillator emis-
sion is often accomplished using forced oscillators rather than single-pass ampli-
fiers. Forced oscillators comprise stable or unstable resonator optics in the
absence of frequency selective optical components. The frequency information is
provided by the master oscillator (Fig. 10).
Requirements for successful excitation of forced oscillators include very low
ASE levels at the master-oscillator stage and excellent triggering synchronization.