Products - Tapered Amplifiers (TA)

Tapered Amplifier


Tapered Amplifier

Near field


Output beam profile

Tapered Amplifier (TA) is a semiconductor optical amplifier, combining high power of broad-area lasers and good beam quality of single-mode ones.

These devices are commonly used for frequency conversion (e.g., second harmonic generation, SHG), pumping of Raman or solid-state lasers/amplifiers and other applications, which require high power and high brightness.

Tapered amplifier allows to achieve several watts of output light, keeping spectral characteristics of master oscillator (input source) and close to Gauss-shape beam profile, which can be effectively coupled (60-70%) into single-mode fiber or another waveguide (e.g., PPLN), using pair of cylindrical lenses for astigmatism compensation.

Beam quality typically characterised by M Squared (M2) or coupling efficiency into a single-mode waveguide. As M2 measurement technique is quite complicated, and customers are usually interested in the power within the single-mode waveguide, each device, fabricated at Innolume, is characterized by coupling efficiency into single-mode fiber, using standard optics.

Innolume tapered amplifiers are supplied on C-mounts or special submounts for simple incorporation in to the customer’s setup. On request TA can be bonded on customized heatsinks.

Part number indentification:

TA-1080-50-CM-3W

  • 1080 - wavelength of maximum power (nm)
  • 50 - tuning range width (nm)
  • CM - heatsink type (C-mount)
  • 3W - output power (W)

Available on heatsinks:

  • High power submount
  • C-mount

Submount
Submount

C-mount
C-mount


Typical parameters* of tapered amplifiers

Part number Wavelength
of maximum
power
tuning
range
Output power
(free-space)
Coupling
efficiency**
Fast axis
beam
divergence
Chip
length
Output
aperture
width
Operating
current
nm nm W % deg mm um A
TA-1080-50-CM-3W 1080 50 3 65 18 4 230 7

* - @ CW, 20-25C heatsink temperature, with input light.

** - into single-mode fiber (for more information, please, have a look at the specification).

Any customized wavelength from the 780-1330 nm range is possible. Please, for the details.