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A wavelength-tunable Bosa and its temperature control method

A temperature control method and wavelength technology, applied in the field of optical communication, can solve the problems of poor adjustment accuracy, slow wavelength adjustment and temperature speed, and difficulty in stabilizing the working temperature of the laser chip, and achieve the effect of improving the adjustment response rate and wavelength adjustment accuracy.

Active Publication Date: 2019-08-20
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is how to solve the slow wavelength adjustment and temperature speed caused by the cooling plate structure in the wavelength adjustable BOSA, the adjustment accuracy is poor, and it is greatly affected by the external environment, which makes it difficult to stabilize the working temperature of the laser chip

Method used

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  • A wavelength-tunable Bosa and its temperature control method
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  • A wavelength-tunable Bosa and its temperature control method

Examples

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Effect test

Embodiment 1

[0068] Embodiment 1 of the present invention provides a BOSA with tunable wavelength, such as figure 2 with image 3 As shown, it includes a BOSA housing 1, a transmitting module 2, a receiving module 3 and a BOSA receiving and receiving optical circuit assembly 4. The transmitting module 2 includes a base 21, a first cooler 22, a laser 23, a backlight PD24, a first thermal A sensitive resistor 25 and a 45° reflective prism 26, wherein the base 21 is provided with at least 8 pins, corresponding to the TEC+ and TEC- pins of the first refrigerator 22, and the LD+ and LD- pins of the laser 23 , the PD+ and PD- pins of the backlight PD24, and the RES1 and RES2 pins of the first thermistor, specifically:

[0069] The bottom of the first refrigerator 22 is fixed on the base 21 by heat-conducting glue, and the position of the 45° reflective prism 26 is located on the surface of the first refrigerator 22 after the fixing is completed, and relative to the central area of ​​the base 2...

Embodiment 2

[0077] Embodiment 2 of the present invention provides a BOSA with tunable wavelength, such as figure 2 with Figure 4 As shown, it includes a BOSA shell 1, a transmitting module 2, a receiving module 3 and a BOSA receiving and receiving optical circuit assembly 4. The transmitting module 2 includes a base 21, a first cooler 22, a laser 23, a backlight PD24, a first thermal A sensitive resistor 25 and a 45° reflective prism 26, wherein at least 8 pins are arranged on the base 21, respectively corresponding to the TEC+ and TEC- pins of the first refrigerator 22, and the LD+ and LD- pins of the laser 23 , the PD+ and PD- pins of the backlight PD24, and the RES1 and RES2 pins of the first thermistor, specifically:

[0078] The bottom of the first refrigerator 22 is fixed on the base 21 by heat-conducting glue, and the position of the laser 23 is located in the central area of ​​the surface of the first refrigerator 22; The 45° reflective prism 26 is provided on the light-emitti...

Embodiment 3

[0096] In addition to providing the 45° reflective prism described in Embodiment 2, the wavelength-adjustable BOSA that uses the 45° reflective prism to realize the horizontal emission of laser light and complete the vertical output of light (wherein "horizontal" and "vertical" are relative to the base of the emitting component On the surface), embodiment 3 of the present invention also provides a BOSA with adjustable wavelength for vertical light output on the basis of vertical emission of laser light, such as figure 2 , Figure 9 with Figure 10 As shown, it includes a BOSA shell 1, a transmitting module 2, a receiving module 3 and a BOSA receiving and receiving optical circuit assembly 4. It is characterized in that the transmitting module 2 includes a base 21, a coupling platform 27, a first refrigerator 22, a laser 23. The backlight PD24 and the first thermistor 25, wherein at least 8 pins are provided on the base 21, respectively corresponding to the TEC+ and TEC- pins...

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Abstract

Disclosed in the present invention are a wavelength-adjustable BOSA and a temperature control method thereof. The transmitting module (2) comprises a base (21), a first refrigerator (22), a laser (23), a backlight PD (24), a first thermistor (25), and a 45° reflective prism (26). A bottom of the first refrigerator (22) is fixed on the base (21) by a heat-conducting glue. The position of the reflective prism (26) is on a surface of the fixed first refrigerator (22) and is opposite to a central area of the base (21). The surface of the first refrigerator (22) is located on a reflecting surface of the reflective prism (26) and is provided with the laser (23). The first thermistor (25) is disposed near the laser (23) on the surface of the first refrigerator (22). The backlight PD (24) is disposed against the laser (23) on the surface of the first refrigerator (22). By disposing the first refrigerator (22) inside the transmitting assembly and directly fabricating the same between the laser (23) and the base (21), the present invention improves wavelength adjustment precision of the laser (23). By integrating the first thermistor (25) from a BOSA housing found in the background art into the transmitting assembly, the present invention improves a regulating response rate of the laser (23).

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of optical communication, in particular to a BOSA with adjustable wavelength and a temperature control method thereof. [0003] 【Background technique】 [0004] In recent years, with the rapid development of Fiber to the home (abbreviated as: FTTH) network, the entire network architecture is constantly expanding, and more and more people feel the high-quality and high-speed services provided by Fiber to the home technology. However, with the rapid increase in the number of users, fiber resources are becoming more and more scarce, and wavelength division multiplexing is often used in the industry to efficiently utilize fiber resources for high-speed data transmission. [0005] At present, there is no Bi-Directional Optical Sub-Assembly (abbreviated as: BOSA) device that can realize the stable and adjustable wavelength of the transmitting laser. The wavelength of lasers using BOSA devices on the market...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42
Inventor 单大丹段苍木邱晨陈俊麟
Owner GUANGXUN SCI & TECH WUHAN
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