TY - CHAP

T1 - Solar-Pumped Solid-State Laser Theory

AU - Liang, Dawei

N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

PY - 2023

Y1 - 2023

N2 - Properties of laser radiation and photons are firstly introduced. Planck´s law, Stefan-Boltzmann’s law and Wien´s law are then presented. Spontaneous emission, stimulated absorption, stimulated emission, Einstein coefficients are explained, leading to the definition of important parameters such as laser gain and stimulated emission cross section. Upper level laser rate equation, light increment along an active medium and laser oscillation threshold condition are consequently defined. More importantly, laser rate equation involving a laser resonant cavity is presented, allowing laser photon density calculation within the resonant cavity. Solar concentration ratio, transfer efficiency, absorption efficiency, upper state efficiency, beam overlap efficiency and output coupling efficiency are also explained. A modified analytical method for solar laser power calculation is consequently put forward. Solar laser output power are finally calculated by the modified, classical, Zemax® and LASCAD™ analysis methods.

AB - Properties of laser radiation and photons are firstly introduced. Planck´s law, Stefan-Boltzmann’s law and Wien´s law are then presented. Spontaneous emission, stimulated absorption, stimulated emission, Einstein coefficients are explained, leading to the definition of important parameters such as laser gain and stimulated emission cross section. Upper level laser rate equation, light increment along an active medium and laser oscillation threshold condition are consequently defined. More importantly, laser rate equation involving a laser resonant cavity is presented, allowing laser photon density calculation within the resonant cavity. Solar concentration ratio, transfer efficiency, absorption efficiency, upper state efficiency, beam overlap efficiency and output coupling efficiency are also explained. A modified analytical method for solar laser power calculation is consequently put forward. Solar laser output power are finally calculated by the modified, classical, Zemax® and LASCAD™ analysis methods.

UR - http://www.scopus.com/inward/record.url?scp=85158149155&partnerID=8YFLogxK

U2 - 10.1007/978-3-031-24785-9_3

DO - 10.1007/978-3-031-24785-9_3

M3 - Chapter

AN - SCOPUS:85158149155

SN - 978-3-031-24784-2

T3 - Green Energy and Technology

SP - 75

EP - 145

BT - Solar-Pumped Lasers

A2 - Liang, Dawei

A2 - Almeida, Joana

A2 - Vistas, Cláudia

A2 - Tibúrcio, Bruno

A2 - Garcia, Dário

PB - Springer

CY - Cham

ER -