CN209311734U - A kind of array collimator of the micro- spacing of two dimension - Google Patents

Abstract

The utility model discloses a kind of array collimator of micro- spacing of two dimension, shells, for fixing the fiber array at a distance from the lens array；Fiber array, the multifiber including M*N arrangement, one end of fiber array passes through the end face of shell, the other end is used to receive the optical signal of light source input, couples the optical signal in optical fiber, and transmits incident beam in array；Lens array, multiple lens including M*N arrangement, for receiving the incident beam of the fiber array transmission, each lens in the lens array are arranged in correspondingly on the optical path position of every optical fiber head in the fiber array, the utility model by by lens array together with fiber array assembled package, formation is simple with structure, assembly is relatively easy, the more advantageous micro- spacing of overall cost two-dimensional array collimator, not excessive auxiliary components, reliability is higher, it is easier to manufacture more high channel number.

Description

A kind of array collimator of the micro- spacing of two dimension

Technical field

The utility model optical communication device field, especially a kind of array collimator of the micro- spacing of two dimension.

Background technique

Optical fiber collimator is the basic components of fiber optic telecommunications equipment, and optical fiber collimator is usually by simple optical fiber and individually saturating Microscope group is at being encapsulated in glass tube or metal tube.With the development of Fibre Optical Communication Technology, fiber optic telecommunications equipment is toward integrated, small Type direction is developed, such as N × M photoswitch, optical cross-connection equipment and wavelength-selective switches, require to use center spacing compared with Small, densely arranged array collimator, but the single collimator outer diameter of the prior art is larger, between collimator outgoing beam Pitch-limited cannot be too small, causes the volume of array collimator to increase, is not applied in these integrated optical devices.

Therefore, the one-dimensional array collimator of micro- spacing and two-dimensional array collimator are the necessary choices of optical integrated device. Current existing one-dimensional array collimator technology is more mature, and the two-dimensional array collimator of common micro- spacing uses one-dimensional array The splicing of collimator stacked in multi-layers, or optical adjusting mechanism is added, adjustment is made to light beam, these two-dimensional micro- pitch arrays collimations There is the problems such as structure is complicated, encapsulation state is unstable, higher cost in device.

Utility model content

In order to solve the above technical problems, the purpose of the utility model is to provide a kind of array collimators of micro- spacing of two dimension.

The technical solution adopted in the utility model is:

A kind of array collimator of the micro- spacing of two dimension, comprising:

Shell, for fixing the fiber array at a distance from the lens array；

Fiber array, the multifiber including M*N arrangement, one end of fiber array passes through the end face of shell, the other end is used It in the optical signal for receiving light source input, couples the optical signal in optical fiber, and transmits incident beam in array；

Lens array, multiple lens including M*N arrangement, for receiving the incident light of the fiber array transmission The optical path position of every optical fiber head in the fiber array is arranged in beam, each lens in the lens array correspondingly It sets.

It is provided on the end face of the shell and passes through this with the one-to-one micropore panel of lens array, the fiber array Micropore panel is so that each lens and every optical fiber head of the fiber array in lens array are accurately corresponding.

Glue for fixing is filled between the end face and lens array of the shell.

The utility model has the beneficial effects that

Lens array by together with fiber array assembled package, being formed, dress simple with structure by the utility model Two-dimensional array collimator with the more advantageous micro- spacing of relatively easy, overall cost, not excessive auxiliary components, reliably Property it is higher, it is easier to manufacture more high channel number.

Detailed description of the invention

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the utility model structural decomposition diagram.

Fig. 3 is the coarse steps schematic diagram of the utility model Yu high definition CCD camera system.

Fig. 4 is the trim step schematic diagram of the utility model Yu Laser Beam Quality Analysis instrument.

Fig. 5 is the manufacturing flow chart of the utility model.

Specific embodiment

As depicted in figs. 1 and 2, a kind of array collimator of the micro- spacing of two dimension, comprising:

Shell 1, for fixing the fiber array 2 at a distance from the lens array 3；

One end of fiber array 2, the multifiber including M*N arrangement, fiber array 2 passes through the end face of shell 1, the other end For receiving the optical signal of light source input, couple the optical signal in optical fiber, and transmit incident beam in array；

Lens array 3, multiple lens including M*N arrangement, the incident light transmitted for receiving the fiber array 2 The optical path of every optical fiber head in the fiber array 2 is arranged in beam, each lens in the lens array 3 correspondingly On position.

The utility model by lens array 3 together with 2 assembled package of fiber array, is formed have structure it is simple, Relatively easy, the more advantageous micro- spacing of overall cost two-dimensional array collimator is assembled, not excessive auxiliary components can It is higher by property, it is easier to manufacture more high channel number.

Further, it is provided on the end face of the shell 1 and the one-to-one micropore panel 4 of lens array 3, the optical fiber Array 2 passes through the micropore panel 4 so that every optical fiber head of each lens and the fiber array 2 in lens array 3 is accurate Corresponding, which is conducive to raising lens array 3 and matches corresponding accuracy with fiber array 2.

Preferably, glue for fixing is filled between the end face and lens array 3 of the shell 1.

In the present embodiment, it is small to be cut into corresponding microlens array 3 for the two-dimensional channel number of lens array 3 as needed first Block, this example are 10 × 10 two-dimensional array of micro-lenses 3, and lens array 3 is wherein plane on one side, and another side divides in a manner of 10 × 10 Cloth micro lens.

As shown in Figure 3-Figure 5, a method of the array collimator of the micro- spacing of manufacture two dimension, comprising the following steps:

A, system is built, a set of optical conditioning system is built, there is 400 times of high definition CCD camera systems 5 and laser beam matter Measure analyzer 6；

B, coarse adjustment, by 3 centerlock of microlens array, be it is fixed, the side of lens array 3 is packed into High definition CCD camera system 5 makes each of lens array 3 lens and fiber array 2 by adjusting the position of lens array 3 In every optical fiber head correspond, by being passed through optical signal to lens array 3, form light in high definition CCD camera system 5 Spot；

C, it finely tunes, changes high definition CCD camera system 5 into Laser Beam Quality Analysis instrument 6, the corner location of fiber array 2 Four intelligent acess relevant work wavelength optical signal, the light beam that laser is generated using Laser Beam Quality Analysis instrument 6 into Row analysis adjusts lens array 3 and 2 relative position of fiber array according to beam quality, when beam quality (such as spot size, ellipse Circularity, angle, operating distance etc.) when reaching theory calls, it is believed that the relative position of lens array 3 and fiber array 2 is symbol It closes and requires；

D, injecting glue is filled glue for fixing between the end face and lens array 3 of shell 1 and is toasted, the glue Water is ultraviolet cured adhesive water, in ultraviolet light, primary solidification glue, 85 DEG C heated baking 2 hours, keep glue completely solid Change.

Array collimator is packed into above-mentioned tooling, whether measures array collimator using Laser Beam Quality Analysis instrument 6 It meets the requirements, examine appearance and cleans.

Lens array 3 and fiber array 2 being coupled and aligned by accurate, it is ensured that each micro lens of lens array 3 with Each optical fiber of 2-D optical fibre array 2 corresponds, and adjusts 3 plane of two-dimensional array of micro-lenses and 2-D optical fibre array by precision The angle and spot size of collimator light beam is monitored online, then in 3 plane of lens array and 1 end face of shell in the distance of 2 end faces Between narrow slit in inject glue, lens array 3 and shell 1 are bonded together after solidified glue, lens array 3 it is each micro- Each optical fiber of lenslet and 2-D optical fibre array 2 corresponds, and forms a micro- spacing two-dimensional array collimator.

The foregoing is merely the preferred embodiments of the utility model, the utility model is not limited to above-mentioned embodiment party Formula, if with essentially identical means realize the utility model aim technical solution belong to the protection scope of the utility model it It is interior.

Claims (3)

1. a kind of array collimator of the micro- spacing of two dimension characterized by comprising shell, fiber array, lens array, wherein

The shell is for fixing the fiber array at a distance from the lens array；

The fiber array includes the multifiber of M*N arrangement, and one end of fiber array passes through the end face of shell, the other end is used for The optical signal for receiving light source input, couples the optical signal in optical fiber, and transmits incident beam in array；

The lens array includes multiple lens of M*N arrangement, for receiving the incident beam of the fiber array transmission, The optical path position of every optical fiber head in the fiber array is arranged in each lens in the lens array correspondingly On.

2. a kind of array collimator of micro- spacing of two dimension according to claim 1, it is characterised in that: the end face of the shell On be provided with the one-to-one micropore panel of lens array, the fiber array pass through the micropore panel so that in lens array Each lens and every optical fiber head of the fiber array it is accurately corresponding.

3. a kind of array collimator of micro- spacing of two dimension according to claim 1, it is characterised in that: the end face of the shell Glue for fixing is filled between lens array.