Introduction

Terbium Scandium Aluminum Garnet (Tb₃Sc₂Al₃O₁₂, TSAG) is the key isolator material for next generation fiber laser. As an ideal magneto-optic crystal in visible and infrared regions, TSAG has the advantages of high Verdet constant, excellent thermal and mechanical properties.

CASTECH's magneto-optical crystal TSAG  is featured by

• Large Verdet constant (48 radT^-1m^-1 at 1064 nm)，about 20~30% higher than that of TGG
• Low absorption (< 3000 ppm/cm at 1064 nm), about 30% less than that of TGG
• High power compliant
• Low thermally-induced birefringence
• Ideal for compact magneto-optic devices

Main Applications

• Faraday Rotator
• Optical Isolator

Table 1. Basic Properties

Specifications of TSAG crystal from CASTECH

Table 2. Specifications