The invention relates to a high molecular material decorated
quantum dot single-mode
optical fiber amplifier and a manufacturing method of the high molecular material decorated
quantum dot single-mode
optical fiber amplifier, and belongs to the technical field of nanometer material composite
optical fiber amplifiers. According to the single-mode optical
fiber amplifier, high molecular material decorated semi-conductor
quantum dots are coated in a pyrometric cone region of a naked 2X2 pyrometric cone
optical fiber coupler in a form of solution, and when a
signal light and a pump light pass through the cone region simultaneously, the
signal light is excited to be amplified by evanescent
waves. The preparation of the quantum dots and the
coating process are separated, so that the high molecular material decorated quantum dots are good in quality, high in concentration and good in dispersibility, are transformed into a water-soluble
quantum dot coating solution from an
oil phase, and are filmed on an optical
fiber so as to form a composite single-mode optical
fiber amplifier. The manufacturing method disclosed by the invention realizes the water-soluble semi-conductor
quantum dot single-mode optical
fiber amplifier which is high in
gain, large in amplification width, small in size, easy to integrate, simple in manufacturing and low in cost; and the optical
fiber amplifier has important real significances and application values in the super-speed and large-capacity
broadband access field and the like.