Er, Yb:Phosphate glass EAT14
Er3+/Yb3+ co-doped phosphate glass — as the 1540nm eye-safe radiation sources pumped by LD which can emit eye-safe 1540nm laser radiation directly used in laser ranging finder and telecommunication communication.
Er3+ emission transition occurs within this wavelength range corresponding to the 4I13/2 →4I15/2 . However, Er3+ absorption itself is too weak to allow direct pumping and so, energy transfers are required. The most efficient ones are given by Yb3+ ions under absorption from the 2F7/2 → 2F5/2 transition, followed by energy transfer to the 4I11/2 Er3+ level and fast nonradiative transition to the Er3+ 4I13/2 level which emits the expected fluorescence.
Er,Yb:glass laser with radiation output at the wavelength of 1540 nm does not require the addition of additional components.
- Type Of Crystal: Er Glass
- Crystal Diameter: 2*2 mm
- Crystal Length: 2.5 mm
- AR Coating: Both sides
- Thickness/Diameter Tolerance: ±0.05 mm
- Density (g/cm3): 3.06
- Abbe Value: 66
- Dn/dT (10-6/℃) (20~100℃): -1.72
- Transformation Temp. (℃): 556
- 1 35nm eye-safe laser
- Er glass fiber amplifier
- Range finder
- Target recognition
- Wide absorption band
- Long fluorescence lifetime
- High optical quality
- Safety for eye
- High slope efficiency
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