Er과 Yb가 동시 첨가된 인산염계 유리를 이용한 이온 교환 도파로 광증폭기
2002
An erbium-ytterbium co-doped phosphate glass waveguide amplifier, fabricated by two-step ion-exchange, is presented. The performance of the amplifiers are investigated in viewpoints of net gain, pump power, and noise figure. The waveguide has propagation loss of 0.7 ㏈/㎝ including insertion loss at 1.304 ㎛. At a signal wavelength of 1.534 ㎛, a high net gain of 12.8 ㏈ and low noise figure of less than 3.9 ㏈ are archived in a 4 cm long waveguide when injected by 140 ㎽ of LD pump at 0.98 ㎛ in single pass configuration.
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