A tunable filter, a tunable optical component and a passive optical network system

A technology of filters and optical emission components, which is applied in the field of communication, can solve problems such as the inability to meet the requirements of adjustable filter bandwidth and isolation at the same time, and achieve the effect of avoiding interference

Active Publication Date: 2018-09-21
广东南邦新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a tunable filter, a tunable optical component and a passive optical network system to solve the technical problem that the prior art cannot simultaneously meet the requirements of the bandwidth and isolation of the tunable filter in the field of optical fiber communication

Method used

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  • A tunable filter, a tunable optical component and a passive optical network system
  • A tunable filter, a tunable optical component and a passive optical network system
  • A tunable filter, a tunable optical component and a passive optical network system

Examples

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Embodiment 1

[0056] Embodiment 1 of the present invention provides a tunable filter 10, such as image 3 As shown, the tunable filter 10 may include: a first Etalon filter 11 , a second Etalon filter 12 and a temperature controller 13 .

[0057] Wherein, both the first Etalon filter 11 and the second Etalon filter 12 are Etalon filters sensitive to temperature changes, and the surfaces of the first Etalon filter 11 and the second Etalon filter 12 are coated with reflective film.

[0058] The temperature controller 13 is arranged on the surface of the first Etalon filter 11 or the second Etalon filter 12 , so that the temperature of the first Etalon filter 11 and the second Etalon filter 12 can be changed by the temperature controller 13 .

[0059] It should be noted that, in the tunable filter 10 provided by the embodiment of the present invention, the temperature controller 13 can be arranged on the surface of the first Etalon filter 11 (such as image 3 shown), of course, the temperatur...

Embodiment 2

[0098] Embodiment 2 of the present invention provides a light receiving component 20, such as Figure 8 shown, including: image 3 The tunable filter 10 and the light receiving module 16 are shown.

[0099] Among them, the tunable filter 10 is used to select the wavelength of the optical signal input from the optical fiber, and transmit the selected optical signal to the optical receiving module 16 .

[0100] The optical receiving module 16 is configured to receive the optical signal output by the tunable filter 10 after wavelength selection.

[0101] It should be noted that, for the specific description of the tunable filter 10 in the embodiment of the present invention, reference may be made to the specific description of the corresponding content in Embodiment 1 of the present invention, and details are not repeated in this embodiment of the present invention.

[0102] The optical receiving assembly provided by the present invention includes an adjustable filter and an op...

Embodiment 3

[0105] Embodiment 3 of the present invention provides an optical network unit 30, such as Figure 9 shown, including: image 3 The tunable filter 10 , light receiving module 31 , light emitting component 32 and optical coupler 33 are shown.

[0106] Wherein, the tunable filter 10 is used to select the wavelength of the downlink optical signal, and transmit the selected downlink optical signal to the optical receiving module 31; the downlink optical signal is the optical coupler 33 It is obtained by selecting the optical signal transmitted through the optical fiber.

[0107] The optical receiving module 31 is configured to receive the downlink optical signal output by the tunable filter 10 after wavelength selection.

[0108] The optical emitting component 32 is configured to emit an uplink optical signal.

[0109] The optical coupler 33 is configured to select the optical signal transmitted through the optical fiber to obtain the downlink optical signal, and transmit the up...

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Abstract

The present invention relates to the field of communications. An adjustable filter (10), adjustable optical assembly and passive optical network (PON) system satisfying both the requirements of the bandwidth and isolation of the adjustable filter in the field of optical fiber communications. The adjustable filter (10) comprises a first Ethernet dragon filter (11), a second Ethernet dragon filter (12) and a temperature controller (13) disposed on the surface of the first Ethernet dragon filter (11) or the second Ethernet dragon filter (12); both the first Ethernet dragon filter (11) and the second Ethernet dragon filter (12) are Ethernet dragon filters sensitive to temperature change; one end of the first Ethernet dragon filter (11) is connected to one end of the second Ethernet dragon filter (12) via an adhesive (14), and the other end of the first Ethernet dragon filter (11) is connected to the other end of the second Ethernet dragon filter (12) via an adhesive (15); and the thickness of the adhesive (14) for connecting one end of the first Ethernet dragon filter (11) to one end of the second Ethernet dragon filter (12) is greater than the thickness of the adhesive (15) for connecting the other end of the first Ethernet dragon filter (11) to the other end of the second Ethernet dragon filter (12).

Description

technical field [0001] The invention relates to the communication field, in particular to an adjustable filter, an adjustable optical component and a passive optical network system. Background technique [0002] Tunable optical device is one of the core devices in the field of optical fiber communication, which plays a key role in improving the adaptability and flexibility of optical networks, and with the time division multiplexing / wavelength division multiplexing hybrid passive optical network With the development of (Passive Optical Network, PON) technology, the demand for adjustable optical devices in the field of optical fiber communication will increase. As we all know, tunable optical devices mainly include two modules: tunable transmitter and tunable receiver. For the tunable receiver, its core component is a tunable filter, but due to the complicated manufacturing process of the tunable filter , the production cost is high, and it has not been widely used in the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00G02F1/01
CPCG02B6/29358
Inventor 刘德坤
Owner 广东南邦新能源有限公司
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