1550 Nm Erbium Doped Fiber Laser

Compact ld tec drivers.

1550 nm erbium doped fiber laser.

Calmar laser tel. This project was designed with the goal in mind of fabricating the division s own 1550 nm mode locked laser utilizing erbium doped fiber as a gain medium in a fiber laser cavity. First manufactured in 1994 for airborne applications the elpn series lasers have since been deployed in a vast variety of telecom test r d and medical applications. The 1550 nm menlo laser system originally meant for the work has obtained pulse lengths on the order of 10 µs orders of magnitude longer than desired.

7 5 db typical. Two matched fiber bragg gratings fbgs are used as the selective wavelength components in the loop laser. A 1 927 nm wavelength was recently added to the 1 550 nm erbium doped fiber laser. These columns of coagulated tissue create units called microthermal zones mtzs penetrate through the.

The difference being that fabry perot laser diodes have reflective coatings on both end faces of the semiconductor chip. The optical feedback from the end faces. The user must find the minimum number of iterations to obtain correct results. The global parameter iterations figure 3 is very important to obtain a steady state output power.

The fraxel laser is a 1550 nm erbium doped glass fiber laser that uses water as the chromophore and produces fractional photothermolysis by coagulating multiple columns of tissue that are separated by surrounding uncoagulated tissue. The erbium doped fiber is pumped with a laser at a wavelength of 980 nm or 1480 nm and produce optical gain in the 1550 nm region. We can t directly send laser light into edfa. Feder continuous wave erbium doped fiber laser with output power of 100 w at 1550 nm in band core pumped by a 1480 nm raman fiber laser in presented at cleo paper cm2n 8 2012 google scholar.

Before that laser needs to be multiplexed into the erbium doped fiber. Erbium nanosecond pulsed laser the all fiber construction allows for full range of output power without changes in power stability and beam mode parameters. An all fiber single wavelength erbium doped photonic crystal fiber pcf distributed feedback dfb loop laser at 1550 08 nm is proposed and demonstrated experimentally for the first time.