Novel pumping scheme of Holmium doped fiber amplifiers operating around <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e988" altimg="si12.svg"><mml:mrow><mml:mn>2</mml:mn><mml:mspace width="1em" class="nbsp"/><mml:mi mathvariant="normal">μ</mml:mi><mml:mi mathvariant="normal">m</mml:mi></mml:mrow></mml:math> using <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e999" altimg="si151.svg"><mml:mrow><mml:mn>1</mml:mn><mml:mo>.</mml:mo><mml:mn>48</mml:mn><mml:mspace width="1em" class="nbsp"/><mml:mi mathvariant="normal">μ</mml:mi><mml:mi mathvariant="normal">m</mml:mi></mml:mrow></mml:math> lasers exploiting cascaded fiber lasers

Jawad Mirza, Ahmad Atieh, Benish Kanwal, Salman Ghafoor