Improvement of ultra-broadband near-infrared emission at around 1.0 µm in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses

Enhanced broadband NIR emission in glass–ceramic fibers containing Nd3+/Yb3+ co‐doped YCa4O(BO3)3 disordered nanocrystal

“…[1][2][3][4] In clinical diagnosis and treatment, broader lasing emission spectrum around the 900-1000 nm band usually get higher axial direction resolution image for optical coherence tomography. 5 Therefore, the pursuit of 900 nm broadband NIR laser output has important practical significance.…”

“…Last decades, near‐infrared (NIR) broadband tunable lasers operating around 900 nm have attracted much attention owing to its extensive applications, such as optical communication, medical diagnostics, solar cell, laser radar, and high‐density optical storage 1–4 . In clinical diagnosis and treatment, broader lasing emission spectrum around the 900–1000 nm band usually get higher axial direction resolution image for optical coherence tomography 5 . Therefore, the pursuit of 900 nm broadband NIR laser output has important practical significance.…”