>As Bob stated earlier in this thread, fiber lasers are cool and they
>can have tunable frequency outputs. This tunability  will be between
>approximately 1200nm-1700nm in communication wavelength range.Even if
>you change the source of your fiber system (put a lower wavelength
>diode) this system will not work accurately. When you have smaller
>wavelength penetration depth will be lower thus reducing the quality
>of cutting process. Also fiber cable will melt if you put a really
>high power laser diode at source side. Tunable lasers are not for
>cutting and such, they are for communications.

I think you are confusing fibre coupled laser diodes with  fibre lasers.
The latter use fibre as the lasing medium and are rapidly gaining ground fo=
r industrial cutting in
the hundreds to thousands of  watt power range

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.