Manlight proposes a wide variety of Erbium (1,5µm) or Ytterbium (1µm) doped fiber amplifiers either using PM or non PM fiber.
Available in OEM module of different sizes depending on the power (with power up to 35dBm at 1,5µm and up to 43dBm at 1µm) as such as in benchtop 3U 1/2 19" (up to 40dBm at 1,5µm) or 3U 19" (up to 43dBm at 1µm), you will necessary find the product that you need for your application.
