本篇論文主要討論光互注入系統，在其他文獻中，對此系統的物理探討大多數都在對稱注入的情況下，但是在實際應用例子中，因系統的構造簡單經常將其積體化產生高頻微波訊號，也有人透過長延遲的互助入系統產生寬頻混沌訊號，在上述的例子中都是透過調整兩個雷射的電流產生所需訊號，因此幾乎都是操作在不對稱的條件下，因此本篇文章深入討論系統從對稱到極度不對稱的情況下對系統造成的改變，了解實際應用上不同對稱條件下系統之特性，本篇實驗中透過精準控制注入強度以及頻率差，了解動態分佈是如何隨著不對稱條件變動。並且著重在週期一動態產生微波訊號的部分，更細部的討論在各種不對稱的條件下對微波頻率的影響，試圖找出有規律趨勢，使系統可以操作在最佳的條件，藉此產生更高頻、更穩定、低線寬的微波訊號，並且運用在無線通訊上。

Fabrication of mutually coupled lasers is easier than sophisticated photonic integrated circuit (PIC) that generates microwave [22-24]. Two mutually coupled lasers are generally operated by injected current which cannot tune coupling rate and frequency in both lasers separately. In this paper, we distinguish the coupling path to investigate its coupling condition individually. We demonstrate microwave generation with frequency higher than the detuning frequency is feasible. In addition, the asymmetry in coupling rate is increased, a broader operating region where microwave generation of frequency higher than the detuning frequency is observed.

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