Ultra-broadband near-infrared emission in praseodymium ion doped germanium tellurite glasses for optical fiber amplifier operating at E-, S-, C-, and L-band

Abstract

An efficient method for achieving ultra-broadband near-infrared signal amplification is proposed employing potential Pr3+ doped UV-sensitive germanium tellurite (NZPGT) glass fiber. The corresponding 1D2 → 1G4 transition emission covers from 1280 to 1680 nm with a full-width at half-maximum of 140 nm, and the associated emission cross-sections at 1390 and 1485 nm are derived to be 2.62 × 10−21 and 7.41 × 10−21 cm2, respectively. Large emission cross-section profile of Pr3+ in NZPGT glasses reveals that effective broadband amplification, especially at E- and S-band, is reasonable to be expected. Practicable operating mechanism of potential Pr3+ doped NZPGT glass fiber offers favorable prospects for rare-earth ion single-doped ultra-broadband signal amplifier.

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

“…Furthermore, the peak stimulated emission cross-section for the 1 D 2 → 1 G 4 transition of Pr 3+ ions in fluoroindate glass was determined. From literature data it is well-known that inorganic glasses singly doped with praseodymium exhibit fascinating prospects in broadband near-infrared fiber amplifier, when the emission cross-section profile is large 21 . In our case, the peak stimulated emission cross-section for the 1 D 2 → 1 G 4 transition of Pr 3+ ions is also relatively large.…”

“…The interesting results for fluoroindate glasses co-doped with Ho 3+ /Tm 3+ and Ho 3+ / Nd 3+ ions 19,20 emitting near-infrared and mid-infrared radiation at 2 μm and 3.9 μm under direct excitation (888 nm or 808 nm) have been also well presented and discussed in details. Among rare earths, the trivalent Pr 3+ ions exhibit broadband near-infrared luminescence covering a wavelength range from 1.2 μm to 1.7 μm, which is really important for optical fiber amplifiers operating at O-band (1260-1360 nm), E-band (1360-1460 nm), S-band (1460-1530 nm), C-band (1530-1565 nm), and L-band (1565-1625 nm) 21 . The recent results indicate that glasses [22][23][24][25] and crystals 26 co-doped with Pr 3+ /Er 3+ seems to be quite good candidates for broadband near-IR luminescence.…”

Spectroscopic Properties of Inorganic Glasses Doped with Pr3+: A Comparative Study

“…In particular, luminescence bands located in the so-called telecom window (1200-1650 nm) have been examined in detail. In this spectral range, ultra-broadband near-infrared emission of Pr 3+ ions related to 1 G 4 → 3 H 5 (λ p = 1330 nm) and 1 D 2 → 1 G 4 (λ p = 1480 nm) transitions is observed for several inorganic glasses, which is extremely useful for optical fiber amplifiers operating at E-, S-, C-, and L-band [74]. In some cases, a near-infrared emission band centered at about 1600 nm is also visible.…”

Síntese e estudo de partículas de LaPO4 / Pr3 + ou Pr3 +: Gd3 + com amplo espectro de emissão (UV ao IV) visando aplicações tecnológica e biotecnológica

“…A segunda, uma banda larga no espectro entre 1400 nm e 1500 nm, referente a transição 1 D2 1 G4. A terceira e quarta banda em 1528 nm e 1575 nm são referentes as transições 3 F4 3 H4 e 3 F3 3 H4 respectivamente [107][108][109][110] .…”

“…Os espectros de excitação das amostras obtidas pelas diferentes vias sintéticas apresentam bandas de excitação referentes as transições na região do azul 3 H4  3 P2,3 H4  3 P1 + 1 I6,3 H4  3 P0 em 441 nm, 471 nm e 482 nm, respectivamente, e uma banda na região do laranja 606 nm referente a excitação 3 H4  5 D2107,108 .Como nos espectros de emissão, o perfil das bandas obtidas para as amostras sintetizadas via pirolise aerossol foi menos definido quando comparado com os perfis das bandas das amostras sintetizadas via hidrotermal. Espectros de excitação com λemissão = 1023,5 nm das amostras sintetizadas via pirólise aerossol.…”